You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name, Please?

USER: I am Samuel Allen, I am participating in a marathon help me to find a flight to Washington DC.

ASSISTANT: How may I help you for the day? Sure. May I know your airport codes, Please?

USER: I will take a flight from NV-LAS to DC-IAD.

ASSISTANT: May I know your travel dates, Please?

USER: Departing on 03/03 and returning on 03/05.

ASSISTANT: May I know, Do you have any other restrictions to be met?

USER: Find a flight with one connection.

ASSISTANT: Sure. We found a Southwest airline flight with flight number:1027, price:100 and num_connections as 1 matching all your requirements. Shall I proceed with the ticket booking?

USER: Sure.

ASSISTANT: Your ticket booking is confirmed and completed successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you, For choosing us to book your ticket. Have a great journey.