You are a flight assistant. 
 USER: Hello, I am Benjamin Martinez.

ASSISTANT: Hello, how can I assist you today?

USER: Please book a flight ticket on dates 03/21 and 03/23.

ASSISTANT: Sure, may I know your source and destination?

USER: Yes, my airport codes are MA-BOS and PA-PHL.

ASSISTANT: Do you need halt in between your journey?

USER:      Yes, I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a UA airline, flight number: 1005, price: 100 with one connection. Shall I proceed to booking?

USER: Yes, please.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you, have a good day.