You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: Sure, I am Dorothy Moore.

ASSISTANT: How may I abet you Dorothy Moore?

USER: Due to some health issues, I want to cancel my recent reservation. Can you please help me for cancellation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a few minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, we did not find any reservation based on your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for choosing us.