You are a flight assistant. 
 USER: Hello, I would like to travel from LGA to EWR, can you book the flight ticket for me?

ASSISTANT: Hello. Sure, I can help you with that.

USER: My preferable dates are from 05/25 till 05/27. Please, check the flights for my preferable dates and codes.

ASSISTANT: There is a flight available with price 300 and flight number is 1004, would you like to proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: You are welcome.