You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am George Gonzalez. I am planning for a round trip to PA-PHL to meet my friends. Can you book a connecting flight?

ASSISTANT: Sure, can I know your departure and arrival dates?

USER: My travel dates are 03/14 and 03/16.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We found a flight of Southwest airline, flight number as 1021 with the price of  100.

USER: You can book the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you.