You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: I am Sarah Gonzalez. I want to travel from ATL to LAS. Can you book a flight ticket for me?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I want to travel in the flight on Feb 26 and Feb 28.

ASSISTANT: Do you have any preferences?

USER: I want to travel in business class.

ASSISTANT: Please wait a minute.

USER: I am looking for a flight with 1 connection.

ASSISTANT: Thanks for waiting. There are no flights found on your data.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you.