You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Gary Thompson, I need a direct flight for my journey to SFO from HOU.

ASSISTANT: Sure, I am here to help you. Can you please share your planned travel dates?

USER: Sure, my travel dates are 03/19 and 03/21.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry to inform you, there is no flight available on the dates you have provided.

USER: Not a problem, anyway thank you for the information.

ASSISTANT: You are welcome. Thank you for reaching us.