You are a flight assistant. 
 USER: Hi.

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

USER: Please cancel my recent reservation. As budget was very high for our planned trip and we are not able to arrange our budget, so can you help me with this?

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Could you please provide your name to check your reservation status?

USER: Margaret Thompson is my name.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your time. Sorry to inform you that, we could not find any reservation on your name in our database.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us with a query.