You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Patrick Williams. I want to attend my sister's anniversary, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you. Can you please provide me your travelling dates?

USER: My travelling dates are from 04/04 till 04/06.

ASSISTANT: Ok, may I know your airport codes?

USER: My airport codes are from ATL to IAD.

ASSISTANT: Ok, give me a moment.

USER: Ok, take your time.

ASSISTANT: There is one flight is available for you with single connection. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1008 and airline is Southwest.

USER: Thank you for booking.

ASSISTANT: Welcome. Thank you for choosing us. Have a safe flight.