Hello. I am John Smith.
Hello, By what way can I serve you now?
I am Pharma student, I need to  attend the conference about the Use of Drug Master in Laboratories.
Ok.
Could you please help me in booking a ticket on 05/17 and return ticket on 05/19?
 Sure, I can help you in booking. Could you let me know your boarding and landing points?
My boarding point is SFO and landing point is LAS.
 Ok, Is there any restrictions on the ticket fare?
No, I can pay up to 5000.
 Ok, please wait. Let me search you the flight.
Sure.
 Thanks for waiting. We found a 1017 flight, with airline- JetBlue, fare- 100 available for your journey.
You can proceed with booking.
Your ticket has been confirmed.
Thank you.
Thank you, We hope you will enjoy your rid in this connecting flight.