You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: I am Betty Collins.

ASSISTANT: Ok.

USER: I would like to cancel my reservation as I am having Semester exams, can you please help me out?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

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

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us, have a nice day.