You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travelling dates are May 12 and 14.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are HOU and IAH.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I prefer connecting flight.

ASSISTANT: May I know your good name please?

USER: My name is Benjamin Harris.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: No issues, thank you.

ASSISTANT: You are welcome.