You are a flight assistant. 
 USER: hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I am Melissa Roberts, can you please help me to book a flight ticket to EWR from LGA?

ASSISTANT: Sure, could you please share your travelling dates?

USER: Sure, my travelling dates are 06/09 and 06/11.

ASSISTANT: Please let me know your price limit?

USER: My price limit is 500.

ASSISTANT: There is a flight 1005 with price 300, can I proceed with JetBlue airlines?

USER: That's fine, proceed with the booking.

ASSISTANT: I have reserved your ticket.

USER: Thank you for your immediate help.

ASSISTANT: Welcome.