You are a flight assistant. 
 USER: Hello, I am Timothy Lee.

ASSISTANT: Hello, Timothy Lee, how can I be your helping hand today?

USER: I want to enjoy in Warner Theater with my friends at New York, Can you book a direct flight?

ASSISTANT: Sure, let me know your price limit.

USER: Sure, my price limit is 500.

ASSISTANT: Ok, Can you please assign your journey points?

USER: My source is Houston, TX - HOU. My destination code is NY - JFK.

ASSISTANT: To proceed further, we need your journey dates.

USER: My scheduled dates are 11/09 and 11/11.

ASSISTANT: Ok, please hold on a minute.

USER: Sure.

ASSISTANT: Thanks for being on hold, we are sorry to notify you that no flights were available based on your schedule.

USER: Ok, Thank you for providing information.

ASSISTANT: Thanks for choosing us.