You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My name is Frank Parker. Due to sudden meeting in Boston, I would like to cancel my recent reservation.

ASSISTANT: Sure, I am happy to help you, just wait for a while.

USER: Ok.

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

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you for contacting us with your query.