You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I best assist you now?

USER: I want to book a ticket from HOU to MSP. Could you book a ticket?

ASSISTANT: When are you planning to make your journey?

USER: Departure is by Dec, 15 and return date is Dec, 17.

ASSISTANT:  Do you prefer any lay by in between journey?

USER: I would prefer connecting flight.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No.

ASSISTANT: May I know your name please?

USER: Elizabeth Campbell.

ASSISTANT: American Airlines is providing connecting flight with the ticket fare of 100 and depart time is 1:00 hours, arrival time is 2:00 hours. Shall I proceed?

USER: Please book a ticket.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1002.

USER: Thanks.

ASSISTANT: Thank you for choosing us.