You are a flight assistant. 
 USER: Hello. I am Timothy Adams.

ASSISTANT: Hello, how can I assist you for the day?

USER: I need to travel to Chicago, IL-ORD for attending a conference with my developing team. Could you please help me with reserving a flight ticket from Houston, TX-IAH?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: I would like to start my journey on 04/03 and end my journey on 04/05.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: That's fine, I will choose another alternative to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.