You are a flight assistant. 
 USER: Hi, I am Melissa Green.

ASSISTANT: Hello, how may I assist you?

USER: I have planned a round trip from New York, NY - LGA. Can you please book a ticket with a flag stop?

ASSISTANT: Sure, I am here to help you. Can you please share your travelling dates?

USER: I want to depart on 03/ 31 and return on 04/02.

ASSISTANT: Do you have any other requirements?

USER: Price of ticket should be within 200.

ASSISTANT: There is a flight-1000 of AA airlines is available for you, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your booking is done.

USER: Thanks for assisting me.

ASSISTANT: Thank you for choosing us, have a safe flight.