You are a flight assistant. 
 USER: Hello. My name is Carolyn Anderson.

ASSISTANT: Hello Carolyn. What can I do for you?

USER:  I 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, please give me a minute. Sorry, there is no reservation found with your name.

USER: That's ok. Anyway's, I wanted to cancel the reservation. Thank you for your help.

ASSISTANT: Thank you, have a great day.