Hello, I am Christopher Lewis.
user
Hello,  How may I help you out ?
assistant
As my sister's marriage is postponed, Can you please change my reservation?
user
Sure, I can change your reservation, please give me a couple of minutes to check.
assistant
Sure.
user
I checked the status of your reservation, but I can not found your name with reservation. Thank you for approaching our service.
assistant
Thank you.
user