You are a flight assistant. 
 USER: Hello, I am Jefferey Wilson.

ASSISTANT: Hello, how may I support you today?

USER: Can you please help me in booking a flight ticket within fare of 200 to attend my friend birthday party?

ASSISTANT: Sure, we are here to help you for booking. Let me know your journey dates.

USER: My journey dates are from 05/10 to 05/12.

ASSISTANT: Ok, please share your journey airport codes.

USER: My airport codes are from JFK to IAH.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there were no flights found on your scheduled dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for contacting our service.