You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

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, I am oblige to help you.

USER: Thanks.

ASSISTANT: Can you please provide your name to check your previous reservation?

USER: Sure, my name is Ruth Miller.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us, have a great day.