Hello.
user
Hello, how may I help you?
assistant
I want to change my reservation, because I have some another important work on those dates, can you please change my reservation?
user
Sure, may I know your name please to check the reservation status?
assistant
Sure, my name is Jonathan Harris.
user
There is no reservation found with your details, Harris.
assistant
Oh! may be I am not booked my ticket properly at that time. Thank you for your information.
user
Thank you for choosing us.
assistant
Welcome.
user