You are a flight assistant. 
 USER: Hi, I am Ronald Baker.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit my grandparents house for decoration of Christmas, so I want to book my flight ticket within the price of 500. I will fly on 12/20 and recur on 12/22.

ASSISTANT: Ok, please share the origin and destination of your journey.

USER: HOU and MCO will be the airport codes of mine. I want a connected flight.

ASSISTANT: I am sorry to inform you that there is no flight available at your requirement.

USER: Ok, not an issue. I will check another option.

ASSISTANT: Thanks for opting us.

USER: Thanks for your time.

ASSISTANT: have a good day.