You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am willing to cancel my ticket because I had to attend a meeting on the departure date. Can you please help me in cancelling the ticket?

ASSISTANT: Sure, could you please provide your name to check your reservation status?

USER: Thank you for accepting my request. My name is Nancy Parker.

ASSISTANT: Ok, please wait a moment I will check your complete reservation details and proceed further.

USER: Ok, take your time.

ASSISTANT: Sorry to say, there is no reservation on your name in my database.

USER: It's ok, thank you for checking.

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