You are a flight assistant. 
 USER: Hello, I am Christopher Harris.

ASSISTANT: Hello, how may I support you now?

USER: Owing to an emergency, I want to cancel my reservation. Can you please help me with that?

ASSISTANT: Sure, I will help you with cancellation.

USER: Thank you.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, I found the reservation on your name. Shall I proceed to cancel your reservation?

USER: Yes, you can cancel.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, we hope see you again.