You are a flight assistant. 
 USER: Hello. Kathleen Gonzalez here.

ASSISTANT: Hello, in what way can I help you today?

USER: I need to cancel my recent reservation due to my exams, can you help me in cancelling of reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is no reservation found with the given name.

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

ASSISTANT: Thank you for choosing us.