You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I serve you today?

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, may I know your good name please?

USER: I made a reservation by this name Sarah Parker.

ASSISTANT: Ok, please wait a minute.

USER: Ok. Ok, no problem.

ASSISTANT: Unfortunately we didn't found any reservation matching your name.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you for picking us.