You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to some issues I want to cancel my reservation, can you help me out?

ASSISTANT: Sure, I will help you. Please wait a while, I will check and inform you. May I know your name please?

USER: Myself Angela Allen.

ASSISTANT: There is no reservation on your name in our database.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Welcome.