You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Anthony Lewis.

ASSISTANT: How may I aid you?

USER: I would like to visit Houston Arboretum and Nature Centre from Phoenix, AZ - PHX. Can you hold me a flight ticket under the range of 1000?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Please let me know your destination airport code?

USER: My landing airport code is TX - IAH.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I want to travel on 03/20 and need to catch return flight on 03/22.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT:  Thanks for waiting, we are pleased to inform you that we have found a AA  airline, flight number-1015 connections-1 and price limit is 100. Shall I reserve?

USER: Please proceed.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for your help.

ASSISTANT: Thanks for your approach. Have a safe flight.