You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: My name is Gary Clark. I want to spend a day at Six Flags Over Georgia in Atlanta, can you please help me to book a flight from, Las Vegas?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I will travel on May 10th and May 12th.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My source airport code is LAS and destination airport code is ATL.

ASSISTANT: Do you have any specifications?

USER: No, I don't have.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Oh ok, will find an alternative to travel. Thank you anyway.

ASSISTANT: Thank you for reaching us.