You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Justin Lopez here. I want to attend a Marriage in Oakland. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 07/27 and 07/29.

ASSISTANT: Where would you like to travel from?

USER: My airport codes are ATL and OAK.

ASSISTANT: At what time do you like to travel?

USER: I want to departure on afternoon.

ASSISTANT: Do you have any specifications?

USER: I would prefer single connection flight.

ASSISTANT: We found a economy flight on your details with American Airlines, flight number: 1026. Shall I book this ticket?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.