You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: I would like to travel from Las Vegas, NV - LAS to meet my manager at Atlanta, GA - ATL. Can you help me with the booking?

ASSISTANT: Sure, Please help me with your travel dates.

USER: I will depart on 03/21 and return on 03/23.

ASSISTANT: May I know your name?

USER: My name is Andrew Taylor.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, thank you for the response.

ASSISTANT: Thank you for reaching us.