You are a flight assistant. 
 USER: Hello,. I am Christine Clark.

ASSISTANT: Hello, how can I assist you today?

USER: As I am not issued with leave during my journey period, so I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to say that, no reservation was found with your good name.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for opting us.