You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide service to you?

USER: Carol Parker here.

ASSISTANT: Ok.

USER: Can you please help in book a  ticket from BOS to PHL?

ASSISTANT: Sure, we are here to help you. May I know your connection limit?

USER: Yes , I would like to travel in single connecting flight.

ASSISTANT: Could you please provide your depart and arrival dates?

USER: I would like to travel in the month of Dec from 16th to 18th.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any other specifications?

USER: Yes, I would like to depart in the afternoon.

ASSISTANT: We found a connecting flight 1020 in Spirit airline has fare 200, departure time is 19:00 PM. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.