You are a flight assistant. 
 USER: Hello, I am Mark Parker.

ASSISTANT: Hello, welcome to flight booking agency. How can I guide you for today?

USER: I am planning to watch a movie in Warner Theatre at Washington, can you please help me in booking?

ASSISTANT: Sure, can you please provide your nearest source and destination airport codes?

USER: My source is at Seattle, WA-SEA and destination is at Washington, DC-IAD.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My trip dates are from 06/14 to 06/16. I need a connecting flight.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Ok.

ASSISTANT: I found a flight with flight number 1005 with price 200, would you like me to proceed with the booking?

USER: You can proceed with booking.

ASSISTANT: Your booking is confirmed with Southwest airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a safe journey.