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

ASSISTANT: Hello, do you need any help from us?

USER: I need to book a flight ticket from PHL to LAS, can you please help me for booking?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I would like to travel on 10/25 to 10/27.

ASSISTANT: The Delta airline with flight number 1000 is available having fare as 200 and connection as 1, is it ok for you?

USER: Ok, proceed for booking.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thanks for your information.

ASSISTANT: You are welcome, have a great day.