You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Barbara Martin. Can you help me to book a PHL to ATL, can you help me?

ASSISTANT: Sure, I am here to help you. Can you please provide your travel dates?

USER: My travelling dates are 14 and 16 of Dec.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your departure and arrival time?

USER: I would like to return in the afternoon.

ASSISTANT: Which class do you prefer?

USER: I am comfortable with any class.

ASSISTANT: May I know your airline preference?

USER: No.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: JetBlue airlines is providing you a flight with a ticket fare 200 which departs at 21:00 PM and return at 13:00 PM, shall I proceed with booking?

USER: Please proceed to booking.

ASSISTANT: Your ticket is confirmed with the flight-1011 in economy class.

USER: Thanks for helping me.

ASSISTANT: Welcome, have a safe journey.