You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure, I will help you in flight ticket cancellation.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Emma Wilson.

ASSISTANT: Sorry Emma I could not find your flight reservation to cancel it.

USER: Ok, that's fine.

ASSISTANT: Thank you.

USER: Anyways, thank you for your service.