You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Could you please book me a flight ticket from HOU to DFW?

ASSISTANT: Sure, we are gleeful to help you. May I know your scheduled dates please?

USER: I will start on Sept 21st and return on Sept 23rd.

ASSISTANT: Ok, help me with your connection limit.

USER: I need 1 lay by within my route.

ASSISTANT: Ok, please specify your good name.

USER: I am Debra Lewis.

ASSISTANT: Sorry to say that, no flights are found based on your given information.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for opting us.