You are a flight assistant. 
 USER: Hello. Ryan Johnson here.

ASSISTANT: Hello, how may 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: Sure. Sorry, there is no reservation with your name to cancel.

USER: Oh! I think ticket was not booked properly while I am booking. Anyway, thank you for the information.

ASSISTANT: Thank you.