You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Can you book a flight ticket from SEA to ORD?

ASSISTANT: Can you please share your trip dates?

USER: My trip dates are in Aug from 4th to 6th.

ASSISTANT: Do you prefer any requirements?

USER: I prefer normal cost airline. I need a single connection flight.

ASSISTANT: There is a connected flight in AA airlines with the fare 200.

USER: I need to depart in the afternoon and return back in evening.

ASSISTANT: Shall I proceed?

USER: If the travel timings are of my requirement, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: May I know your name?

USER: Gary Edwards here.

ASSISTANT: Thank you.