You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: I'm Thomas Carter. My planned trip has been cancelled as of now, can you please help me in cancelling my ticket?

ASSISTANT: Sure, we are glad to help you. Ok, please wait for a while, let me check.

USER: Sure.

ASSISTANT: Thank you for waiting. We did not find any reservation against your name.

USER: That's ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for  reaching us. Have a nice day.