You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Margaret Hall want to travel to PA-PHL to attend a meeting.

ASSISTANT: Ok, Can I know your travelling dates?

USER: My travelling dates are 11/19 and 11/21. I. I need a connection flight.

ASSISTANT: May I know your preferable airport codes?

USER: I will depart from MA-BOS.

ASSISTANT: We found a AA airline, flight number:1022 and the price is 100.

USER: Ok, confirm my booking.

ASSISTANT: Your flight ticket has been proceed.

USER: Ok, thank you for booking.

ASSISTANT: Thank you.