You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How exactly I can assist you the best today?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I can cancel your reservation right now. Before that I need to know your good name please?

USER: Myself Mark Edwards.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to notify that there is no active reservation found on your name.

USER: No problem, thanks for checking.

ASSISTANT: Thanks for contacting us, have a nice day.