You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to travel for Houston, will you please help me in booking my ticket from LAX to IAH?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my travelling dates are from 01/25 to 01/27. Make sure that the connection of the flight should be 1.

ASSISTANT: Give me a minute, let me check the details. Can I know your name?

USER: Sure. My name is Sharon Lopez.

ASSISTANT: Sorry Lopez, there are no flights available on your request.

USER: Ok, no problem, I will travel on some other day. Thank you for your help.

ASSISTANT: Welcome. Have a nice day.

USER: Thank you.