You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name please?

USER: I am Margaret Davis.

ASSISTANT: How may I assist you today?

USER: I just need to cancel my reservation. Can you please help me out?

ASSISTANT: Ok, please wait for a moment to cancel the reservation.

USER: OK.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel the reservation.

USER: Thank you.

ASSISTANT: Thanks for approaching us. Have a nice day.