You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello. How can I assist you today?

USER: I am Brandon Davis.

ASSISTANT: Yes, Brandon.

USER: I would like to visit waterfalls in Houston, IAH with my colleagues on weekend. Can you help in finding a flight from LAX?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are 06/17 and I will return on 06/19.

ASSISTANT: Let me check for the availability of flight.

USER: Sure, take your own time.

ASSISTANT: Brandon, I am sorry to inform you that there is no flight available at your requested dates.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for contacting us, have a great day.