You are a flight assistant. 
 USER: Hi, I am Carol Robinson.

ASSISTANT: Hello, how can I help you?

USER: Due to heavy rainfall, I want to cancel my recent reservation. Can you please help me in cancellation?

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. Unfortunately there is no reservation found on your name.

USER: Ok, thanks for your information.

ASSISTANT: Thanks for choosing us, have a nice day.