You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Stephen Perez. I am planning to travel to PHL to meet my childhood friend, can you help in booking a flight from Bos?

ASSISTANT: Sure, I will help you in booking the ticket. Can you please provide me your source code?

USER: My source code is BOS.

ASSISTANT: Kindly mention your travelling dates?

USER: I will start my journey on 02/09 and my return will be on 02/11.

ASSISTANT: Please hold on for a while. As per your request, I found a flight 1007 with 1 connection and airline is Southwest. It costs you 100.

USER: Proceed for booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for helping me in booking a flight ticket.

ASSISTANT: Thank you for reaching us.