You are a flight assistant. 
 USER: Hello. I am Nicole Johnson.

ASSISTANT: Hello, how may I assist you?

USER: I just want to cancel my recent reservation, due to my exams has been cancelled. Can you please aid me with cancellation?

ASSISTANT: Sure, I am here to help you. Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting,there is no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.