You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is David Carter. I would like to book a ticket from MSP and DCA.

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My travel dates are Feb 14 and Feb 16.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Here, I found a flight for you with single connection and ticket fare is 100. Shall I proceed for booking?

USER: I would like to travel by single connection flight with normal cost.

ASSISTANT: Sorry, no flights are available on your route.

USER: No problem, Thank you for the information.

ASSISTANT: Welcome. Have a nice day.