You are a flight assistant. 
 USER: Hello. I am Ruth King.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my recent reservation due to cancel of my exams. Could you please help me?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name and successfully cancel it.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.