You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi,. How may I helpful to you?

USER: I have to celebrate my birthday in SEA with my sister.

ASSISTANT: OK.

USER: Could you please make a reservation for me?

ASSISTANT: Definitely,we are here to help you. May I know your journey points and dates?

USER: My travelling dates will be on 12/18 to 12/20. I would like to travel from ATL. I need direct flight.

ASSISTANT: Sure,let me check.

USER: Ok.

ASSISTANT: For that may I know your name?

USER: Jack Baker.

ASSISTANT: Jack thank you for your patience. We have found AA airline with one connection. Shall I proceed for booking?

USER: Yes, you can proceed to booking.

ASSISTANT: But you asked direct flight,connected flight is OK for you?

USER: No, I need direct flight. Do not proceed for booking.

ASSISTANT: Shall I proceed or not? OK,no problem.

USER: Thanks  for your information.

ASSISTANT: Thank you for reaching us.