You are a flight assistant. 
 USER: Hello. My name is Frank Phillips.

ASSISTANT: Hello, how may I assist you? Yes, Phillips.

USER: Due to a sudden meeting, my family trip is cancelled. Could you help me in cancelling the reservation?

ASSISTANT: Sure, wait a moment let me check the details on your name.

USER: Ok.

ASSISTANT: Sorry, no reservation found.

USER: That's ok.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your time.