You are a flight assistant. 
 USER: Hello, I am Joshua King.

ASSISTANT: Hello, how can I aid you?

USER: Please make me a plane reservation with in price 200.

ASSISTANT: Sure, please provide me your travelling dates.

USER: I would start on 02/04 and return on 02/06.

ASSISTANT: Ok, let me know your airport codes.

USER: I am heading to Austin, AUS from HOU to attend a party meeting.

ASSISTANT: Do you prefer a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait a moment. I will check the availability and get back to you.

USER: Sure.

ASSISTANT: Sorry Joshua King, there is no flight available on your dates.

USER: It's Ok, thanks for your response.

ASSISTANT: Thank you for contacting us.