You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Parker.

ASSISTANT: How can I serve you for the day?

USER: I would like to travel from LAS to DTW, can you help me to book a flight ticket?

ASSISTANT: Sure, we are happy to help you. When are you planning to make your journey?

USER: My preferable journey dates are Jan 17 and Jan 19.

ASSISTANT: Do you have any break in between journey?

USER: I prefer connecting flight for this trip.

ASSISTANT: Is there any airline preference for you?

USER: I am comfortable with any airlines.

ASSISTANT: May I know your depart and arrival timings please?

USER: I would like to depart in the afternoon.

ASSISTANT: Kindly mention your class preference.

USER: No.

ASSISTANT: Thanks for providing details, there is a direct flight found in Spirit airline with a fare of 100 and the depart time is 18:00 PM. Shall I proceed for booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your ticket is reserved in economy class with flight number 1017 and return time is 12:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.