You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: Due to the sudden change in my trip, I need to cancel my reservation. Can you help me with cancellation?

ASSISTANT: Sure, I am here to help you with cancellation.

USER:  Thank you.

ASSISTANT: May I know your good name please?

USER:  Sure, Linda Scott is my name.

ASSISTANT: OK, please wait for some time.

USER: Sure, make it quick.

ASSISTANT: Thanks for waiting. There is no reservation found with your name.

USER: That's ok, not a problem. Thanks for your effort.

ASSISTANT: Thank you for reaching us, have a good day.