You are a flight assistant. 
 USER: Hello, I am Karen Young.

ASSISTANT: Hello, how can I aid you?

USER: As I am owner of nursery , I am planning to go for New York flower, JFK festival to buy new variety of planets. Can you help me in booking my flight ticket from HOU with a direct flight?

ASSISTANT: Sure. Please share your trip dates.

USER: 04/19 - 04/21 are my trip dates.

ASSISTANT: Do you have any connection limit? Do you have any price limit?

USER: I already mentioned above about my connection limit. Fare should be 200.

ASSISTANT: Thanks for the information. We did not found any direct flights matching your criterion.

USER: Thank you for quick response.

ASSISTANT: Thanks for opting us.