You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Carolyn Perez. I want to book a flight ticket on 09/21 and return on 09/23, so can you help me with booking?

ASSISTANT: Sure, help me with your airport codes?

USER: Ok, my airport codes are TX-DFW and PA-PHL.

ASSISTANT: Ok, any other requirements?

USER: I need a connecting flight.

ASSISTANT: Ok, flight- 1002, airline- UA, price- 200 with connection-1 matches your requested details.

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.