You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: James Hernandez here. Can you please help me in booking a ticket from IAH to LAS?

ASSISTANT: Can you please tell your travelling dates?

USER: Sure, my journey dates are 05/14 and 05/16. Please search for a direct flight.

ASSISTANT: Frontier airline is available with 1 connection and ticket price is just 200. Shall I proceed with it? Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight available with your requested details.

USER: That's ok, thank you for your information.