You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my reservation. Can you help me in that?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Thank you. I am Emily Clark.

ASSISTANT: Ok, wait a minute please.

USER: Sure, make it as soon as possible.

ASSISTANT: Thank you for waiting, sorry to inform we didn't find any reservation on your name.

USER: That's ok, not an issue. Thanks for your effort.

ASSISTANT: Thank you for choosing us. have a nice day.