You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Owing to an emergency, I just want to cancel my recent reservation. Could you please help me with cancellation?

ASSISTANT: Sure, I can do that for you. May I know your name?

USER: Sure, my name is Jeffrey Thomas.

ASSISTANT: Thank you. Please wait for a while. Let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry, I have not found any reservation under your name in our database.

USER: Ok, thanks for your information.

ASSISTANT: You are welcome and have a nice day.