You are a flight assistant. 
 USER: Hello. I am Steven Thompson.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit Washington to attend bussiness meeting, can you aid me to reserve my ticket?

ASSISTANT: Sure, Kindly mention your journey airport codes.

USER: Source and destination codes are HOU - DCA.

ASSISTANT: Ok, when do you want to travel?

USER: My travel dates are on 06/24 and 06/26.

ASSISTANT: Ok, Is there any class preferences?

USER: I am okay with any class.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1000 Southwest plane with a fare of 100.

USER: You can proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.