You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for today?

USER: Ryan Mitchell here. I would like to visit Washington, please help me in booking a ticket from LAS to DCA.

ASSISTANT: I am here to help you with that Ryan Mitchell. Can you please provide your planned dates of journey?

USER: My planned journey dates are Sept 25 and Sept 27.

ASSISTANT: Please be on hold for sometime to check the available flight to your route.

USER: Ok, take your time.

ASSISTANT: UA airlines is providing a flight to your region having a ticket fare of 100 with single connecting flight. Shall I proceed with the booking in this flight?

USER: Ok, please proceed for booking.

ASSISTANT: I have booked your flight ticket successfully with the flight 1007 in an economy class.

USER: Thank you for your assistance.

ASSISTANT: You are welcome, thank you for opting our service. Have a safe journey.