You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: Katherine Phillips here. I need to reserve a ticket from DTW to HOU, can you please help me in doing that?

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: My journey dates are Mar 16 to Mar 18.

ASSISTANT: Do you prefer an economy class ticket or business class ticket?

USER: I am comfortable with any class.

ASSISTANT: Is there any time restriction?

USER: My depart time is in morning.

ASSISTANT: Do you need a stop over in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, we have a Frontier airline with flight number 1012 going on your way from DTW in the morning and the ticket cost is 200. Is that fine?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.