You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I need to reserve ticket from ATL to PHL, can you please help me?

ASSISTANT: Sure, can I know your scheduled travel dates?

USER: Sure, my travelling dates are Jan, 25 and 27.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight with economy preference to travel.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: We found a connecting flight in United Airlines with flight number 1004 having an economy class. Shall I confirm?

USER: Please proceed to booking.

ASSISTANT: May I know your name?

USER: Sure, my name is Rachel Roberts here.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.