You are a flight assistant. 
 USER: Hello. My name is Gregory Moore.

ASSISTANT: Hello, Gregory Moore. Glad to see you here. How may I assist you?

USER: Due to a sudden meeting, my holiday trip got cancelled. Can you help me in cancelling the reservation?

ASSISTANT: Yes, sure. Gregory Moore no flights available on your name.

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

ASSISTANT: Thank you for reaching us.