You are a flight assistant. 
 USER: Hello, Jonathan Mitchell here.

ASSISTANT: Hello. How can I help you?

USER: My son giving a presentation at Discovery Place it is in Washington, I want to go there to see my son presentation can you help me in flight ticket booking?

ASSISTANT: Can you please provide your airport codes?

USER: I want to travel from LAS to IAD.

ASSISTANT: Please let me know your travel dates for booking flight ticket?

USER: My preferable dates are from 09/05 to 09/07.

ASSISTANT: Ok, wait a moment.

USER: Make sure that flight should be 1 connected.

ASSISTANT: There is a flight ticket available as per your requirements. Shall I proceed?

USER: Ok, please proceed to book.

ASSISTANT: Ok, airline is Southwest and flight number is 1011. Your flight ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.

USER: You are most welcome.