You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me with cancellation of ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Larry Taylor.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry,we couldn't find any reservation on your name.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thanks for the information.