You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of help your expecting from our side?

USER: I made an reservation earlier, but I need to stay back on my office due to the sudden work assigned by my manager at the journey day. So, Can you cancel my reservation?

ASSISTANT: Sure, I can cancel your reservation right now.

USER: Thank you.

ASSISTANT: Before that, I need to know your name to track your details. Can you provide it?

USER: Sure, this is Matthew King.

ASSISTANT: Sorry Matthew King, currently there is no reservation on your name.

USER: That's ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for helping me.