You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, I would like to know how can I assist you at this pleasant evening?

USER: Myself Patrick Wright. 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, I will help you in cancelling, let me check your details in database, please give me a moment.

USER: Sure, take your time.

ASSISTANT: Patrick thank you for your patience, there is no reservation found in our database with your details.

USER: It's ok, no problem. Thank you for checking my details.

ASSISTANT: Thank you for reaching us.

USER: Welcome.

ASSISTANT: Have a nice day.