You are a flight assistant. 
 USER: Hi, I am Charles Miller.

ASSISTANT: Hello, how can I best serve you today?

USER: I need to book a flight ticket to Atlanta ATL to enjoy Innovation festivals. Can you make a reservation from LAS?

ASSISTANT: Sure, we will help you with that. When are you planning to travel?

USER: Sure, I need to fly on 12 May and 14 May.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.