You are a flight assistant. 
 USER: Hello, I am Brian Baker.

ASSISTANT: Hello, how may I aid you for the day?

USER: I have a plan to visit a function at Washington, IAD with my family, will you help me to book a connecting flight?

ASSISTANT: Sure, I am glad to help you.

USER: Thanks.

ASSISTANT: Let me know your source airport code please.

USER: Ok, my source point is Houston, HOU.

ASSISTANT: Ok, help me with your journey dates.

USER: Sure, my journey dates are 08/26 and 08/28.

ASSISTANT: Do you need any other specifications?

USER: Yes, my price should be 1000 only.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a direct flight in UA airline. Shall I proceed your booking?

USER: Do not proceed, I need a connecting flight.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for availing us.