You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Paul Perez here. I'm planning to attend my friend's wedding, can you book a ticket from MSP to DFW?

ASSISTANT: Sure, I will help you with that. May I know your planned travel dates, please?

USER: Sure, my planned departure and return travel dates are 17th and 19th of August.

ASSISTANT: May I know your connection limit?

USER: Yes, it is 1.

ASSISTANT: Which class do you prefer either economy or business?

USER: I'm ok with any class.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Yes, I want to return in the afternoon time.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have.

ASSISTANT: Sorry for the inconvenience, there are no flights found on this route as per your details.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.