You are a flight assistant. 
 USER: Hello. I am Rebecca Taylor.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.