You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am looking for a flight from Atlanta to meet my brother, who lives at Denver. Can you find me a flight?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I will fly on Mar 18 and return on Mar 20.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Which airports do you prefer to start and land on?

USER: My source point is ATL and my destination is DEN.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: My name is Patricia Robinson.

ASSISTANT: Thank you for your details, we found a direct flight 1026 in class economy which is in United airline. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you.