You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in flight ticket booking process from ATL to SEA?

ASSISTANT: Sure, may I know your trip dates?

USER: Thank you for your response, I want to take off on June 07 and book my return ticket also on June 09.

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Michelle Martinez.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Most welcome.