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

ASSISTANT: Hello, how may I help you today?

USER: I have to attend my college  science exhibition with my friends. Can you please help me to book a ticket from PHL to DFW?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: My journey dates will be on 02/20 to 02/22.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with AA airlines, flight number is 1005 with one connection and price is 200.

USER: You can proceed for booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for choosing us.