You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, we are here to help you. Please wait a minute.

USER: Sure, I will wait for your information.

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

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

ASSISTANT: Thank you for choosing us.