You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how can I help you?

USER: Can you please help me in booking my flight ticket from DTW to PHX?

ASSISTANT: Sure, could you please provide me the itinerary travel dates that you have planned for?

USER: My planned dates are from 01/12 to 01/14.

ASSISTANT: Could you please let us know if you have any class preference?

USER: I am comfortable with any of the class.

ASSISTANT: May I know if you have any airline preference?

USER: There is no airline preference for me.

ASSISTANT: Are there any time concerns in your travelling?

USER: No.

ASSISTANT: Would you please provide me your connection limit if you prefer?

USER: I am looking for a single connecting flight.

ASSISTANT: Would you let us know your name please?

USER: Myself Mary Allen.

ASSISTANT: Please spare me a minute of your precious time?

USER: Sure.

ASSISTANT: Frontier Airlines with flight 1015 is providing service on your route with connecting flight and the cost is 200.

USER: Please proceed with the booking.

ASSISTANT: Mary Allen, your ticket is booked where depart DTW 4:00 hours Jan 12 and arrival PHX 4:00 hours Jan 14.

USER: Thank you for your help.

ASSISTANT: Than you very much for reaching us and I am happy to serve you.