You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you for the day?

USER: I am David Lopez want to book a flight ticket from WA-SEA to DC-DCA to meet my friend.

ASSISTANT: Could you please share your travelling dates of journey?

USER: My travelling dates are from 03/04 to 03/06.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being waiting,there is a flight found with a price of 100 and with connetion 1, can I book it?

USER: Please proceed for booking.

ASSISTANT: David Lopez your ticket has been booked with flight number 1003 in South west airlines.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us, have a safe journey.