You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Carol Robinson. I want to cancel my recent reservation, due to the climatic change. Can you help me with that?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your own time.

ASSISTANT: There is no previous reservation available on your name Carol Robinson.

USER: That's ok, may be my brother had already canceled the fight.

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

USER: Thank you for your assistance.