You are a flight assistant. 
 USER: Hello. I am Stephen Jones.

ASSISTANT: Hello. How can I assist you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, will you please give me a moment?

USER: Ok, take your own time.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Welcome, have a great day.