You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me with booking a flight ticket from MSP to DFW?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travel dates are Mar 14 and 16.

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

USER: I am comfortable with any time.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer business class.

ASSISTANT: May I know your good name please?

USER: My name is Amy Taylor.

ASSISTANT: Sorry, there is no flight available for your request.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.