You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: My name is Raymond Davis and I would like to cancel my ticket.

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry we did not find any reservation with your name in our database.

USER: No problem , thank you for the help.

ASSISTANT: Thank you for choosing us.