You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Gary Garcia. I am planning to attend for food festival at Washington, IAD. Can you please reserve me a flight ticket from DCA?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I would like to depart on Feb 04 and return on Feb 06.

ASSISTANT: Do you have any requirements?

USER: There should be a halt in between my journey.

ASSISTANT: There is a connecting flight 1003 with Southwest airlines, can I proceed?

USER: Please, proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Welcome.