You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Due to heavy rainfall, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: My name is Mary Mitchell.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Mary Mitchell, there is no active reservation found under your name to do cancellation.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.