You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Frank Evans here.

ASSISTANT: What type of help that you are expecting from us?

USER: By mistakenly I was made a wrong reservation. So I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, We can help in that one also. Let me check on that one, please wait.

USER: Ok, take your time.

ASSISTANT: Sorry Evans, there is no reservation found on your name to cancel you booking.

USER: Thank you for the information.

ASSISTANT: Thank you for communicating us.