You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to surprise my sister on her birthday at Boston.

ASSISTANT: That's really good to hear.

USER: Can you book a flight ticket for me?

ASSISTANT: Sure, may I know when you want to travel?

USER: I want to travel on 10/21 and return on 10/23.

ASSISTANT: Could you please mention your travel, airport codes?

USER: My origin airport code is AUS and I want to land on BOS.

ASSISTANT: Please provide your name?

USER: Sure, my name is Stephanie Evans.

ASSISTANT: Evans, based on your request, there is a flight with airline Southwest. Shall I proceed?

USER: May I know the price and connection limit?

ASSISTANT: Connection is 1 with price 100.

USER: Ok, now you can proceed.

ASSISTANT: Your ticket has been booked with flight number 1005. Have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thanks for contacting us.