You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: Can you please help me in booking a flight ticket from Houston, IAH to Dallas, DFW?

ASSISTANT: Sure, provide your planned days to book your ticket.

USER: My journey dates are from Feb 27 to Feb 29.

ASSISTANT: Ok, let me know your name to book your ticket.

USER: My name is Andrew Scott.

ASSISTANT: Do you require any lay by between your journey?

USER: I need a lay by in between journey.

ASSISTANT: Do you need any other favour which I can do from my side?

USER: My departure time is evening.

ASSISTANT: We regret to inform you that there is no flight going on your way.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.