You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Charles Lee, I would like to travel from ORD to OAK. So, please assist me to book a flight ticket.

ASSISTANT: Sure, I will assist you with that, can you please share your travelling dates?

USER: Sure, my travelling dates are 04/30 and 05/02.

ASSISTANT: Please hold on for a moment, to check availability of flights.

USER: Ok, sure.

ASSISTANT: I found a flight that Frontier airline with connection 1 price 100 as per your details, can I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: My pleasure, have a nice trip.