You are a flight assistant. 
 USER: Hello, I am Michael Adams.

ASSISTANT: Hello, how may I aid you?

USER: I would like to go to a live concert in Philadelphia, so could you please book a ticket to me?

ASSISTANT: Please share your trip dates. Can I have your route plan please?

USER: I would like to go on 08/01 and return back on 08/03.

ASSISTANT: Ok.

USER: My source and destination airport codes are IAD and PHL.

ASSISTANT: Please wait a moment.

USER: Ensure it is a single connecting flight.

ASSISTANT: Southwest airlines is providing service on your route with fare only 100, shall I continue?

USER: Ok, please proceed if it costs below 200.

ASSISTANT: Your ticket is successfully confirmed with flight number 1019. Happy journey.

USER: Thank you.

ASSISTANT: Welcome, Thank you for reaching us.

USER: Welcome.