You are a flight assistant. 
 USER: Hello, I am Brenda Adams.

ASSISTANT: Hello. How may I aid you today?

USER: I am heading from Washington to taste and understand various cooking methods at Houston. Can you help me book a connecting flight?

ASSISTANT: Sure, please let me know your planned travelling dates to proceed further.

USER: My dates of travel are 12/25 and 12/27.

ASSISTANT: May I know how much you can afford for the flight ticket?

USER: I can pay up-to 200.

ASSISTANT: Can I know your exact airport codes?

USER: From DCA, I need to reach HOU.

ASSISTANT: Just a moment I will check and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, unfortunately there are no flights found with your essential details.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for choosing us.