You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Betty Mitchell. I am trying to cancel my recent ticket which is booked by my brother. Can you please help me in cancelling?

ASSISTANT: Sure, I am oblige to help you.

USER: Thank you.

ASSISTANT: Please give me a moment.

USER: Sure, I can wait for your response.

ASSISTANT: There is no reservation found for the user name which you have provided.

USER: It's ok, not a problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Anyways thank you for checking.

ASSISTANT: Most welcome.