You are a flight assistant. 
 USER: Hello. I am Amy Green.

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: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation matching with your name in our portal.

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

ASSISTANT: Most welcome.