You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to book  a flight ticket to Seattle WA-SEA, help me in booking my flight ticket from Atlanta GA-ATL.

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

USER: 06/15 to 06/17 are my travelling dates.

ASSISTANT: May I know your name?

USER: I am Raymond Edwards.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Its ok, thank you.

ASSISTANT: Thank you for opting us.