You are a flight assistant. 
 USER: Hello, I am Timothy Mitchell.

ASSISTANT: Hello, how may I assist you today?

USER: Due to my interview has been postponed so, I want to cancel my recent reservation. Can you help me for cancellation?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there is no reservation on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you so much for choosing us.

USER: Thanks for your information.

ASSISTANT: Have a good day.