You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Daniel Carter.

ASSISTANT: How may I aid you?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, I am glad to help you. Please wait for a minute.

USER: Sure.

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

USER: Ok, thanks for your kind assistance.

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