You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, may I know your name?

USER: Andrew Jackson here.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name.

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

ASSISTANT: Thank you for opting us.