You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help you are looking for?

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

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that, we couldn't find any reservation against your name.

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

ASSISTANT: Thank you for choosing us.