You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to travel from IAH to DFW. Can you help me to book a flight ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: I want to travel in the flight on Sept 07 and Sept 09.

ASSISTANT: May I know your name please?

USER: Richard Martinez.

ASSISTANT: Can I know the connection limit please?

USER: I want to have a connection of 1.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for approaching us.