You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you today?

USER: I am Jennifer Lee .

ASSISTANT: How are you Jennifer?

USER:  I like to travel from HOU to JFK.

ASSISTANT: Can you provide the journey dates please?

USER: My date of journey is on 12/27 to 12/29.

ASSISTANT: Please wait a moment.

USER: And I need 1 connecting flight with 500 limit .

ASSISTANT: Sorry Jennifer, there are no flights available as per your request.

USER: OK . Thank you .

ASSISTANT: Thank you for contacting us, have a good day.