You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Mary Collins here. I have a plan to enjoy my holiday trip with my friends in PHL. Can you please aid me for booking from DEN?

ASSISTANT: Sure, please let me know your connection limit.

USER: I need a connected flight.

ASSISTANT: Ok, when do you want to depart and return?

USER: I have a plan to travel on 17 Oct and return on 19 Oct.

ASSISTANT: Ok, Do you have any class preference?

USER: I prefer an economy class.

ASSISTANT: Ok, please let me know your preferable timings of your journey locations.

USER: My return time is evening.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1020 JetBlue airline with a fare of 300. Can I proceed for booking?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been booked and return time is 1:00AM.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.