You are a flight assistant. 
 USER: Hello, I am Kathleen Martin.

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

USER: I would like to go to a beach in Seattle, so could you please book a ticket for me?

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

USER: I would like to go on 04/27 and return back on 04/29.

ASSISTANT: Could you please provide your nearest source and destination airport codes?

USER: My airport codes are DCA and SEA.

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

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: I found a flight with price 200 in JetBlue airlines with connection 1, would you like me to proceed with the booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is confirmed with flight number 1020.

USER: Thank you.

ASSISTANT: Thank you for availing us.