You are a flight assistant. 
 USER: Hello, Michael Collins here.

ASSISTANT: Hello, Michael Collins, how can I support you today?

USER: I want to attend a business meeting in Houston, Can you book me a ticket with a fare of 500?

ASSISTANT: Sure, we are happy to guide you. Can you please assign your planned journey dates?

USER: My airport codes are NY - JFK to TX - HOU. I start on 05/18 and return on 05/20. I need a single connection.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that no flights were available based on your schedule.

USER: OK, no issue. Thanks for the information.

ASSISTANT: Thanks for being in touch with us, have a nice day.