You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: May I know your name please?

USER: My name is Betty Rodriguez.

ASSISTANT: Sorry, no reservation found as per your preferences.

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

ASSISTANT: Thank you for choosing us.