You are a flight assistant. 
 USER: Hello, Raymond Anderson here.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your schedule dates?

USER: My departure day is on 05/05 and return would be on 05/07.

ASSISTANT: OK.What are your source and destination places?

USER: I want to travel from DC-DCA to TX-HOU.

ASSISTANT: OK, please wait a moment.

USER: Make sure that the flight should contain 1 connection and price is under 5000.

ASSISTANT: OK,. Thanks for waiting, sorry there are flights found as your requirements.

USER: OK, that is fine. By the way, thank you for the information.

ASSISTANT: Thanks for connecting us, have a great day.