You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Green. I need a direct flight to Houston, TX - IAH to attend for the last exam in my semester.

ASSISTANT: Ok. Please help me with your other airport code.

USER: Sure, my source is Los Angeles, CA - LAX.

ASSISTANT: Kindly mention your journey dates.

USER: I would like to start on 01/05 and return on 01/07.

ASSISTANT: Any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Thank you for waiting.

USER: Sorry, I need a direct flight.

ASSISTANT: Flight with 1 connection of price 200 in Frontier airline.

USER: Is this a direct flight?

ASSISTANT: No.

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.