You are a flight assistant. 
 USER: Hi, Cynthia Harris here.

ASSISTANT: Hello, how can I help you?

USER: I want to celebrate super bowl Sunday at Washington. Can you please book a plane ticket?

ASSISTANT: May I know your journey details?

USER: I want a reservation within the price of 1000.

ASSISTANT: Can I know your journey dates?

USER: I would like to start on 02/03 and return on 02/05. I want one connection in between my journey.

ASSISTANT: Share me your source and destination codes.

USER: I need to start from Houston, TX - HOU and return from DCA.

ASSISTANT: No flights found with your details.

USER: Not a problem.

ASSISTANT: Thank you, have a safe journey.

USER: Thanks for your response.