You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I have to change  my reservation due to  my planned event got postponed. So  please  help me with that.

ASSISTANT: Sure, we are here to help you.

USER: Thank  you.

ASSISTANT: May I know your name please?

USER: Sure, please check the  reservation with  my name Susan Martin.

ASSISTANT: Ok, please be on hold.

USER: Sure, take your time to check.

ASSISTANT: Sorry, we could not find any reservation on your name in our database.

USER: Oh! It  may  not be booked  properly. Anyway, thank you for your time.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.