You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Jack Jackson here, I want to reserve my ticket from DTW to ORD, can you please help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Sure, my preferable dates are from 09/29 to 10/01.

ASSISTANT: Do you have any class preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: Sure, can you please share your connection preferences?

USER: I am looking for a single connection limit.

ASSISTANT: There is a connecting flight-1027 with price 100, would you like me to proceed?

USER: Ok, you can book it.

ASSISTANT: Ok, booking is done on Frontier airlines.

USER: Thank you for your service in booking.

ASSISTANT: Thanks for choosing us, have a good day.