You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please book a ticket from DFW to MSP to attend Innovation festival?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are Oct 9 and Oct 11.

ASSISTANT: Ok, could I have your name please?

USER: I am Daniel Thompson.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I want single connected flight.

ASSISTANT: Ok, do you have any other specifications?

USER: My return time is morning.

ASSISTANT: Ok, please allow me a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Ok, Thank you.

ASSISTANT: You are welcome, have a great day.