Dear [Name of Consular Officer], I am writing to invite [Name of Applicant] to visit me in the United States. [He/She] is a dear friend of mine, and I would be honored to have [him/her] as my guest. [Name of Applicant] and I have known each other for [number of years], and [he/she] has always been a responsible and trustworthy individual. [He/She] is employed as [occupation] and has a stable income. [He/She] has also visited several countries in the past and has always abided by the laws and regulations of those countries. During [his/her] stay in the United States, I will be responsible for [his/her] accommodation and all other expenses. I have attached a copy of my passport and proof of residence to this letter for your reference. [Name of Applicant] intends to visit the United States from [date] to [date]. [He/She] will be staying with me at my residence located at [address]. [He/She] plans to visit several tourist attractions during [his/her] stay, including [list of attractions]. I assure you that [Name of Applicant] will return to [his/her] home country after [his/her] visit and will not overstay [his/her] visa. [He/She] understands the importance of complying with the laws and regulations of the United States. Thank you for your time and consideration. If you require any further information, please do not hesitate to contact me. Sincerely, [Your Name]