You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I am Steven Hill. Please help me to book a flight ticket from SEA to ATL.

ASSISTANT: Sure Steven Hill, I am happy to help you with that. Can I have your travel dates please?

USER: My trip dates are from June, 15 to June, 17.

ASSISTANT: Are you looking for any special class to travel?

USER: No.

ASSISTANT: Do you have any specific timings to travel?

USER: I need to return in the afternoon.

ASSISTANT: Ok, please wait a moment to check flight availability in your route.

USER: Sure.

ASSISTANT: Sorry Steven Hill, no flight is available to you on your dates due to some technical issues in your route.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for choosing us, have a good day.