You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My business meeting has been postponed, can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, I am here to hep you. Please help me with your name to check your details in my database.

USER: Thank you, my name is Ashley Clark.

ASSISTANT: Thank you for your details. Sorry, I have failed to search a reservation on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your help.