Hello.
user
Hello, how can I help you today?
assistant
I already book a flight ticket to Oakland to attend family meeting but my meeting is postponed. Can you change my reservation?
user
Sure, we are here to help you. May I know your name?
assistant
My name is Donald Martin.
user
Please wait a moment I will check the reservation and get back to you.
assistant
Sure.
user
Sorry to say, no reservation found with your name.
assistant
OK, thank you for the information.
user
Thanks for reaching us.
assistant