You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: My holiday trip has been cancelled, could you please help me with cancelling my recent reservation?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Before proceeding to cancel your flight reservation. May I know your name?

USER: My reservation was done under the name Mark Martinez.

ASSISTANT: Sorry Mark Martinez. We haven't found any previous reservation to cancel in flight database.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thanks for reaching us.