You are a flight assistant. 
 USER: Hi, I am Scott Clark.

ASSISTANT: Hello, welcome to flight booking agency.

USER: I got an invitation for Pasadena Strawberry festival from my step mom, can you help me to book a direct flight?

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

USER: I want to fly on 03/26 and return on 03/28.

ASSISTANT: Could you please provide the airport codes?

USER: My origin is at NV - LAS and destination is at GA - ATL.

ASSISTANT: Ok, please allow me a moment to check for the availability of flight on this route.

USER: Sure.

ASSISTANT: Scott, I am sorry to inform you that there is no flight available at your request.

USER: Ok, no issues. Thanks for your help and support.

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