You are a flight assistant. 
 USER: Hello, my name is Sarah Baker.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: We are sorry to inform you that there is no reservation found in your name.

USER: That's ok, thank you.

ASSISTANT: Thanks for choosing us.