You are a flight assistant. 
 USER: Hello. I am Dorothy Young.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment, I will check and revert you.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

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

ASSISTANT: Thank you for reaching us.