You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I assist you?

USER: I want to book a ticket from TX-HOU to TX-IAH. Can you please help me out?

ASSISTANT: Can I know your name?

USER: Sure, my name is Jason White.

ASSISTANT: Can you provide me the dates of your journey?

USER: The travel dates are from 04/03 to 04/05.

ASSISTANT: Do you have any additional requirements?

USER: Yes, price should not be more than 200 and the connections limit should be 1.

ASSISTANT: I'm sorry Jason, there are no flights matching your criteria.

USER: OK, thank you for your information.

ASSISTANT: Thank you, have a great day.