You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I need to buy a plane ticket. Please help me in that.

ASSISTANT: Sure, I am gleeful to help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are from Jan, 04 to Jan, 06.

ASSISTANT: Ok, may I know your regional airport codes for booking?

USER: My source airport code is PHL and destination airport code is ORD.

ASSISTANT: Any class preference do you have?

USER: I prefer an economy class to fly.

ASSISTANT: May I know your name please?

USER: I am Emma Turner.

ASSISTANT: Do you have any other preferences?

USER: I need to return in the afternoon.

ASSISTANT: Please be on hold to check the flights.

USER: Ok.

ASSISTANT: Based on your information, I have found a connecting flight having with the fare of 100 provided by United Airlines in economy class. Are you ok with this flight?

USER: Please go ahead.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1014.

USER: Thank you for booking.

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