You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I assist you?

USER: I have to cancel my reservation as I have to prepare for my exams, can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: Catherine Campbell.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found with your given name.

USER: No issues. Thanks for checking.

ASSISTANT: Thank you for opting us.