You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent ticket booking due to office work that my manager did not approve my leaves, so can you please cancel it?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can I know your name?

USER: Sure, I am Timothy Collins.

ASSISTANT: Sorry, there is no reservation on your name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you.