You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I lend a hand to?

USER: I am a doctor, I have to attend a seminar on cerebral palsy. So please book my ticket from EWR to ATL.

ASSISTANT: Sure, I am here to help you for this. Could you please provide me your travel dates?

USER: My itinerary dates are Apr 7 and Apr 9.

ASSISTANT: Is there any preferences regarding your airlines?

USER: I have never travelled in normal-cost airlines, so please book my ticket in it.

ASSISTANT: Do you have any other requirements?

USER: I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: As per your data, I found a flight with American Airlines and the ticket fare is 200. Shall I proceed for this?

USER: Please book my ticket.

ASSISTANT: For reserving the ticket. May I know your name?

USER: Charles Gonzalez here.

ASSISTANT: Your ticket is reserved in economy class with the flight-1012. Your depart time is 0:00 AM, and again your arrival time is 3:00 AM.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you very much for contacting our agency.