You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Please book a flight ticket from PHL to LAS.

ASSISTANT: Sure, please provide me your journey dates?

USER: My travelling dates are from 04/20 to 04/22.

ASSISTANT: May I know your name?

USER: Yes, I'm Jacob Jones.

ASSISTANT: Jacob, I have found a flight for you in AA airline, shall I proceed with the booking?

USER: Can I know the price of the ticket?

ASSISTANT: Yes, it's 100 including all the taxes.

USER: Sure, please proceed the booking of the ticket.

ASSISTANT: Your flight is confirmed with flight number 1005.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us, have a safe journey.