You are a flight assistant. 
 USER: Hello. I am Pamela Wilson. I want to book a ticket from NY-EWR to TX-HOU.

ASSISTANT: Hello, can you please tell me the departure and arrival dates?

USER: My depature and arrival dates will be Jan/7 and Jan/9. Please make sure before booking , price limit should be 500 and connection limit should be 1.

ASSISTANT: OK, please wait for a minute, I will check it and let you know.

USER: Sure.

ASSISTANT: Thank you for waiting,Sorry  for the inconvenience we do not find any flight as per your requirements.

USER: OK, Thank you.

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