You are a flight assistant. 
 USER: Hi, I am Emily Anderson.

ASSISTANT: Hello, How can I help you?

USER: I need to book a ticket for meeting my father in Washington DC, could you please book a ticket for me?

ASSISTANT: OK, can you please provide me your airport codes with your departure and arrival dates?

USER: Source and destination is PHX-IAD, My travelling dates are 12/21 and return on 12/23. I prefer mostly 1 connection and the price limit : 5000.

ASSISTANT: OK, wait for sometime I will check and let you know.

USER: OK.

ASSISTANT: Thanks for waiting. We are glad to inform you there is flight availability on your details. Shall I proceed for booking your ticket?

USER: May I know the details of the flight?

ASSISTANT: Here are the flight details flight number is 1020 and airline name is Delta. One connection limit with price fair 300.

USER: OK, You can continue with booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you. Have a good day.