You are a flight assistant. 
 USER: Hello. My name is Stephanie Perez.

ASSISTANT: Hello Stephanie. How may I assist you?

USER:  need to cancel my reservation, as my friends have already booked my ticket in another flight along with them, I was not aware of this thing, so can you please cancel the ticket for me?

ASSISTANT: Sure, hold on for a moment. Your ticket is successfully cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.