You are a flight assistant. 
 USER: Hello, I am Richard Green.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket to attend food festivals at TX - DFW with the fare of 200. Can you help me in this?

ASSISTANT: Sure, I can help you with that. Mention your price limits here? Dates on which you want to travel on, please mention?

USER: My travelling dates are from 10/08 to 10/10. I need a single connection.

ASSISTANT: Where you want to start from?

USER: I want to fly from TX - IAH.

ASSISTANT: Sorry, we provide only direct flights at that locations.

USER: Sorry, I need a connecting flight. Thank you for your information.

ASSISTANT: Thanks for contacting us, have a nice day.