You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you at present?

USER: Could you please book a flight ticket from MSP to DCA?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are Apr 13 and Apr 15.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Alexander Lopez.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I don't have any other specifications.

ASSISTANT: We found a direct flight 1008 in Delta airlines at the price of 800 with business class. Can I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for availing us.