You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Alexander Nelson here. I would like to travel SEA to my friends house to celebrate his birthday, could you book it on 08/19?

ASSISTANT: Sure, from where you have to start?

USER: I am starting from AUS and returning on 08/21.

ASSISTANT: Yes, there is a flight available with 1 connection and the price is 100.

USER: Yes, continue to proceed with reservation.

ASSISTANT: Ok. Your reservation done with AA airlines and the flight is 1016.

USER: Ok, thank you for your helping in reserving my ticket.

ASSISTANT: Thank you and have a nice day.