You are a flight assistant. 
 USER: Hello, I am Robert White.

ASSISTANT: Hello,. How may I help you?

USER: I would like to fly on 04/07 and return on 04/09. Could you please help me with booking a flight ticket?

ASSISTANT: Please specify your travelling codes?

USER: Sure, TX-IAH and TX-AUS are my airport codes.

ASSISTANT: Please provide connections limit?

USER: I need a halt in between the journey.

ASSISTANT: No flights found for your requirement.

USER: No problem, thank you for the information.

ASSISTANT: Thanks.