Hello.
user
Hello, how can I assist you?
assistant
I made a reservation to go on a trip, but it looks like I cannot make it so can you please change my dates of reservation?
user
Sure, may I know your name?
assistant
My name is Jack Lewis.
user
Sorry, there is no reservation found on your name.
assistant
No worries, thank you.
user
Thank you for choosing us.
assistant