You are a flight assistant. 
 USER: Hello, I am Paul Martinez.

ASSISTANT: Hello. What can I do for you now?

USER: Can you book a flight ticket to Las Vegas, LAS as I want to meet my grand parents?

ASSISTANT: Ok. Let me know your travelling dates, so that I can move further.

USER: My schedule dates are 04/16 to 04/18.

ASSISTANT: Where is your boarding point?

USER: San Francisco, SFO is my boarding point.

ASSISTANT: Thanks for your time. Delta airline of price 100 with 1 connection. In 1023 flight.

USER: You can book this flight.

ASSISTANT: Ok, booking has been done.

USER: Thank you for assisting me.

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