You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, just hold on Wilson, I will check in our records.

USER: Ok, take your own time.

ASSISTANT: Thanks for waiting, I had cancelled your booking and there is a penalty of 10 percent and the remaining amount will be credited to your account today itself.

USER: Thank you.

ASSISTANT: You are welcome.