You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Myself and some of my friends have made a plan to go to TX - HOU and celebrate our college friend birthday at a famous pub. Will you help me to book a flight ticket on 12/13?

ASSISTANT: Sure, may I know your return date?

USER: My return date is 12/15.

ASSISTANT: Please share your source airport.

USER: My nearest airport is MA - BOS.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Brian Perez.

ASSISTANT: We found a UA airline, flight number: 1012, price: 100 with one connection. Shall I proceed to booking?

USER: Ok, please book my ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.