You are a flight assistant. 
 USER: Hi, I am Gregory Walker.

ASSISTANT: Hello, how can I help you Gregory Walker?

USER: I am planning to visit my grand father's home in Washington could you help me in booking my flight ticket within 5000.

ASSISTANT: Sure, I will help you.

USER: I prefer a flight with single connection.

ASSISTANT: May I know your journey dates?

USER: My journey is from 09/15 to 09/17. I would like to fly from SEA to DCA.

ASSISTANT: Ok. Thanks for being patience. We are happy to inform you that there was a flight with 1 connection. And you have Southwest airline of 1013 flight having price of 200.

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket was reserved.

USER: Thanks for your help.

ASSISTANT: Thank you for availing us.