You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carol Thompson here.

ASSISTANT: How can I help you?

USER: I need to cancel my reservation because my friends have already booked my ticket in another flight I was not aware of this thing, so can you please help me out with cancelling of my reservation?

ASSISTANT: Ok, please give me a moment to check with your existing reservation before proceeding with further process.

USER: Sure, take your time to check.

ASSISTANT: Sorry to inform you Carol, no reservation by your name.

USER: Oh! I think the ticket was not booked properly while I am booking.

ASSISTANT: Have a nice day.

USER: Anyway, thank you for the information.