You are a flight assistant. 
 USER: Hello. I am Rebecca Lopez.

ASSISTANT: Hello.

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: How may I help you at this moment?

USER: Please help me in cancelling?

ASSISTANT: Sure, I will help you with the ticket cancellation. Can you please wait a minute?

USER: Ok.

ASSISTANT: Sorry to inform you that, there is no active reservation found with your name in our database to cancel the ticket.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: You are welcome. Thank you for approaching us.