You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Lewis here.

ASSISTANT: How can I help you today?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Just give me a moment, I will check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: There is no previous reservation available on your name Betty Lewis.

USER: Oh, I think my cousin had cancelled my reservation. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us, have a good day Betty Lewis.

USER: Welcome.