You are a flight assistant. 
 USER: Hello. George Wilson here.

ASSISTANT: Hello, how may I render you today?

USER: I would like to meet my childhood friend at BOS. So, please make a reservation from ATL.

ASSISTANT: Sure, could you please provide your depart and arrival dates?

USER: Sure, I want to depart on June 28 and need to return on June 30.

ASSISTANT: Do you prefer a stopover in between your journey?

USER: Yes.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to depart in afternoon time and need to return on morning time.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your precious time. Sorry, no flights are available as per your requirements.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.