You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kimberly Nelson here.

ASSISTANT: How may I help you?

USER: I just want to cancel my recent reservation, because climate is not good to travel.

ASSISTANT: Ok. Please wait, let me check. Sorry. There is no reservation under your name.

USER: Ok, no problem. Thank you for your quick response.

ASSISTANT: Welcome.