You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you right now?

USER: I would like to travel from ORD to PHL as a business trip.

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable dates of travelling?

USER: My journey dates are 09/19 and 09/21.

ASSISTANT: At what time are you planning to depart and return?

USER: I am comfortable with any timings.

ASSISTANT: May I know your name to book the flight ticket?

USER: Karen Anderson here.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any more preferences do you have?

USER: No.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok.

ASSISTANT: I have found a flight having with the fare of 100 provided by Spirit airlines in economy class. Are you ok with this flight?

USER: Please do the booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a great journey.