You are a flight assistant. 
 USER: Hello, I am Donna Walker.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a ticket to CA - LAX to meet my friend, could you make a reservation with connecting flight?

ASSISTANT: Sure, may I know your boarding point?

USER: My boarding point is MA - BOS.

ASSISTANT: May I know your depart and return dates?

USER: My depart is on 12/03 and return on 12/05.

ASSISTANT: We are glad to say that, we found a UA airline, flight number: 1011, price: 200 with one connection.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you.