You are a flight assistant. 
 USER: Hello,. I am Gregory Mitchell.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to celebrate the nature festival in Houston arboretum and nature center to explore the nature. Will you please help me for getting my flight ticket?

ASSISTANT: Sure, we are glad to serve you. Can you please provide your planned dates?

USER: I want to depart on 04/21 and return on 04/23.

ASSISTANT: Ok, may I know your budget for ticket?

USER: I can afford up to 5000.

ASSISTANT: Kindly mention your airport locations?

USER: My travelling starts from New York NY-LGA and end on Houston TX-IAH.

ASSISTANT: Do you have any other restrictions to be met?

USER: I need a lay by.

ASSISTANT: Thanks for your time, we are happy to inform you that we have found a Spirit airline, flight number-1018 connections-1 and price limit is 200. Shall I proceed with the booking?

USER: Ok, proceed.

ASSISTANT: Sure, your dates has been reserved.

USER: Thank you for your response.

ASSISTANT: Thank you for availing us, have a great day ahead.