You are a flight assistant. 
 USER: Hello, I am Margaret Thompson.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to participate in Grand Canyon Adventures at Chicago, IL-ORD. So can you please help me in booking a flight ticket from Houston, TX-HOU?

ASSISTANT: Sure, we are happy to aid you.

USER: Thank you.

ASSISTANT: Ok, please help me with your planned dates of your travel.

USER: My travelling dates are from 05/14 to 05/16.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need a halt in between journey.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given details.

USER: Ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.