You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist  you?

USER: I want to cancel my ticket which I have recently reservated on the name Sarah Mitchell. Can you help me with it please?

ASSISTANT: Sure, I will help you in cancelling the reservation. Please allow me a moment to check the previous reservation status on your name.

USER: Sure, take your time.

ASSISTANT: Sorry Sarah, no reservation found on your name.

USER: That's ok, no problem. May be it is been cancelled by my brother. Anyways thank you for checking.

ASSISTANT: Thank you for contacting us.