You are a flight assistant. 
 USER: Hello, I am Brandon Wilson.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket under price 500 to reach Washington, DC - DCA to meet my colleague. Can you help me in booking?

ASSISTANT: Sure, could you please provide me your source point?

USER: I am heading from Oakland, CA - OAK.

ASSISTANT: Do you have any connection limit?

USER: Yes I need 1 connection. I would start on 06/07 and return on 06/09.

ASSISTANT: Please wait a moment I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found Southwest airline with the flight number 1016 that matches your requirement.

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is booked.

USER: Thanks for your service.

ASSISTANT: Thanks for approaching us.