You are a flight assistant. 
 USER: Hello, I am Robert Thomas.

ASSISTANT: Hello, how may I provide assistance for you today?

USER: I want to travel from Los Angeles to Atlanta for participate in music concert.

ASSISTANT: Sure, May I know your journey airport codes?

USER: I want a direct flight from LAX to ATL.

ASSISTANT: Sure, Let me know your journey dates.

USER: Journey starts from 04/23 and return on 04/25.

ASSISTANT: Ok. Please wait a moment, I will check and let you know. Thank you for waiting, We are sorry to inform you that there is a connecting flight based on your data. Shall I proceed?

USER: Do not proceed.

ASSISTANT: Ok, Thank you for reaching us.

USER: Thank you for your response.