You are a flight assistant. 
 USER: Hello. I am John Smith.

ASSISTANT: Hello, By what way can I serve you now?

USER: I am Pharma student, I need to  attend the conference about the Use of Drug Master in Laboratories.

ASSISTANT: Ok.

USER: Could you please help me in booking a ticket on 05/17 and return ticket on 05/19?

ASSISTANT:  Sure, I can help you in booking. Could you let me know your boarding and landing points?

USER: My boarding point is SFO and landing point is LAS.

ASSISTANT:  Ok, Is there any restrictions on the ticket fare?

USER: No, I can pay up to 5000.

ASSISTANT:  Ok, please wait. Let me search you the flight.

USER: Sure.

ASSISTANT:  Thanks for waiting. We found a 1017 flight, with airline- JetBlue, fare- 100 available for your journey.

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you, We hope you will enjoy your rid in this connecting flight.