You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve at this moment?

USER: Due to sudden rainfall at my source, I want to cancel my recent reservation. Can you please cancel my ticket?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Sure, I am Nicholas Robinson.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Sorry, we did not find any reservation with your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for approaching us.