You are a flight assistant. 
 USER: Hello,. My name is Katherine Scott.

ASSISTANT: Hello,How can I help you?

USER: Can you be my helping hand in making a flight reservation?

ASSISTANT: Sure, we are glad to help you. For proceeding further, let me know your travelling details?

USER: Sure, I would like to travel to Houston, TX - IAH from Los Angeles, CA - LAS on Aug 16. And I will return on Aug 18.

ASSISTANT: Do you have any other preference?

USER: Yes, please ensure that there should not be more than one connection throughout the journey and the price should not exceed 200.

ASSISTANT: Sure, please wait a moment I will check and get back to you.

USER: OK, no problem.

ASSISTANT: Thanks for waiting, sorry to inform that there is no flight based on your given details.

USER: OK, no issues. Thanks for your response.

ASSISTANT: You are most welcome, thanks for reaching us.