You are a flight assistant. 
 USER: Hello, I am Deborah Edwards.

ASSISTANT: Hello, how can I abet you today?

USER: I am going to Dallas & Fort Worth, TX - DFW to participate in Dalls arts district Scavenger hunt. Please book me a ticket with price under 1000.

ASSISTANT: Sure, may I know your travelling dates?

USER: I will leave on 03/23 and arrive on 03/25.

ASSISTANT: Could you please mention your source code?

USER: I will fly out from Houston, TX - HOU.

ASSISTANT: Please mention you lay by's.

USER: I need 1 way station.

ASSISTANT: Sorry, no flights found on your requested dates.

USER: It's Ok.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your assistance.