You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book a connecting flight from MSP to DFW.

ASSISTANT: Can I know your journey dates?

USER: Sure, I want to travel on May 7 and need to return on May 9.

ASSISTANT: Is there any class preference?

USER: I prefer an economy class to travel.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: Found ticket with Frontier airlines for price 100 having flight number 1029.

USER: Ok, please proceed for booking.

ASSISTANT: Please provide your name?

USER: Stephen Johnson here.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.