You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Barbara Nelson here. Could you book my ticket in a connecting flight?

ASSISTANT: Sure, please help me with your airport codes.

USER: I want to travel from BOS to LGA.

ASSISTANT: May I know your trip dates please?

USER: I want to travel on Jan 26 and Jan 28.

ASSISTANT: May I know your name please?

USER: I mentioned my name.

ASSISTANT: Do you have any connection preference? Do you have any other specifications?

USER: I already mentioned. I have no other specifications.

ASSISTANT: I found an economy class in Southwest airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Please book my ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1020.

USER: Thank you.

ASSISTANT: Thank you for choosing us.