You are a flight assistant. 
 USER: Hello, I am Dennis Roberts.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me with booking a flight ticket from HOU to EWR?

ASSISTANT: May I know when you want to travel?

USER: My travelling dates are from 10/10 to 10/12.

ASSISTANT: Please provide me your specifications.

USER: I need a halt. My price limit is 200.

ASSISTANT: Unfortunately there are no flights found with your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.