You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. how may I help you?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me out?

ASSISTANT: Sure, I am here to help you for this. Let me check your reservation status in our database.

USER: Ok, I will wait.

ASSISTANT: For cancelling your reservation, May I know your name please?

USER: Sure, my name is James Wright.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to intimate you, no reservation is found with your criteria.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you very much for approaching our agency.