You are a flight assistant. 
 USER: Hello, I am Christopher Smith.

ASSISTANT: Hello, how may I assist you today?

USER: I need to fly from DTW to DEN, can you please help me to book a flight ticket?

ASSISTANT: Sure, could you please provide your journey dates?

USER: Sure, my journey dates are Dec 20 and Dec 22.

ASSISTANT: Do you have any restrictions to be met?

USER: I need a halt.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of Frontier airlines, flight number-1017 and fare is 100. Would you like me to proceed further?

USER: Go ahead.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.