You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Linda Martin. I am planning to attend a Cultural event in Washington, could you please help me in booking a flight ticket from Houston?

ASSISTANT: Sure, could you please provide me your planned journey dates?

USER: I want to fly on 04/22 and return on 04/24.

ASSISTANT: May I know your source and destination airport codes?

USER: My airport codes are TX - HOU, DC - DCA.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a JetBlue airline, flight number: 1003, price: 200 with one connection.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.