You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Actually, I want to cancel my reservation which is done recently due to some problems, can you please help me out?

ASSISTANT: Sure, may I know your name?

USER: Ok, my name is Thomas Young.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your service.