You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Mark Jones.

ASSISTANT: How can I assist you Jones?

USER: I want to cancel my reservation as I met with an accident, can you please do that for me?

ASSISTANT: Sure, please wait a moment.

USER: Sure, I will wait for your response.

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

USER: That's fine, thank you for checking.

ASSISTANT: Thank you for approaching us.