You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Jonathan Adams. Owing to an emergency I want to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Sorry, there is no reservation with your name to cancel.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for opting us, have a great day.