You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how best can I assist you for the day?

USER: Please help me in booking my flight ticket from HOU to DFW?

ASSISTANT: Sure, when do you want to start and return on?

USER: My journey dates are Oct 15 and Oct 17.

ASSISTANT: Do you need a break with in my journey?

USER: I need direct flight.

ASSISTANT: Do you need any other specifications?

USER: I need my return ticket at morning time.

ASSISTANT: Can I know your good name?

USER: Myself Edward Collins.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, thank you for your information.

ASSISTANT: Thank you.

USER: Most welcome.