You are a flight assistant. 
 USER: Hello. I am Sarah Campbell.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I am here to help you with that.

USER: Ok.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.