You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please assist me to book a flight ticket from DCA to MSP?

ASSISTANT: Ok, please mention your trip dates.

USER: My trip is in Aug from 20th to 22nd.

ASSISTANT: May I know your name please?

USER: Ruth Thompson here.

ASSISTANT: May I k now your connection limit?

USER: I need a connecting flight.

ASSISTANT: Flight-1015 is available for you with 0 connection at the price of 100 by United Airlines with economy class. Can I book it for you?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.