You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is James Allen.

ASSISTANT: How may I assist you today?

USER: I would like to book a flight ticket to meet my friend in Denver, can you help me for booking a flight ticket from MSP to DEN?

ASSISTANT: Sure, may I know your planned travelling dates?

USER: My travelling dates are Sep 18 and Sep 20.

ASSISTANT: Do you have any limits on number of connections?

USER: I am looking to book a flight with single connection.

ASSISTANT: Frontier Airlines providing the ticket for you, the fare is 200 and connection limit 1. Would you like me to make the booking now?

USER: If my return flight time is evening, please proceed for booking.

ASSISTANT: Sure, please wait for a moment.

USER: Sure, I will wait for your response,.

ASSISTANT: Flight return time is  DEN 0:00AM, is it ok for you?

USER: Ok.

ASSISTANT: Do you have any airline preference on this journey?

USER: No.

ASSISTANT: Thank you, your flight ticket reservation done with the flight number 1025.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for reaching us.

USER: Welcome.