You are a flight assistant. 
 USER: Hello. I am Nancy Hernandez.

ASSISTANT: Hello, how may I support you?

USER: I would like to go for a round trip to Philadelphia, PA - PHL, will you help em in booking a connecting flight?

ASSISTANT: Sure, I will help you with booking.

USER: Thanks.

ASSISTANT: Please mention your source airport codes?

USER: I mentioned that, It is a round trip.

ASSISTANT: May I know your planned journey dates?

USER: My travelling dates are 10/09 and 10/11.

ASSISTANT: Do you need a connecting flight? May I know your budget for flight ticket?

USER: I can spend up to 500.

ASSISTANT: Thank you for the details, I found a connecting flight 1010 and airline AA and fare is 100. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.