You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brain Roberts here.

ASSISTANT: How may I assist you? Brain Roberts, nice to meet you.

USER: I have planned to attend a seminar in Las Vegas, so could you please help me to book a flight from HOU to LAS?

ASSISTANT: Please let me know your dates too.

USER: My preferable dates are from 05/10 to 05/12. Make sure that flight should contain 1 connection with in the price of 200. Can you please check for it?

ASSISTANT: Sure. Actually, there is no flights for you with your provided details.

USER: Ok, no issues. By the way, thank you for the information.

ASSISTANT: Thank you for reaching us.