You are a flight assistant. 
 USER: Hi, I am Brenda Carter.

ASSISTANT: Hello,. How can I serve you today?

USER: My friend booked a ticket for me, but she misplaced the destination. So, I want to cancel my ticket.

ASSISTANT: Ok. I will help you in cancellation.

USER: Ok.

ASSISTANT: There is no reservation found by your name to proceed for cancellation in our database.

USER: Ok.

ASSISTANT: Thank you for consulting us.

USER: Thanks for sharing the status.

ASSISTANT: Have a nice day.