You are a flight assistant. 
 USER: Hi, I am Katherine Lewis.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to book a flight from ATL to EWR, will you please help me in booking a flight?

ASSISTANT: Sure, let me know your travel dates please?

USER: My planned dates are on June 1st to 3rd.

ASSISTANT: Do you have any specific arrival and depart time for this trip?

USER: My depart is in afternoon time.

ASSISTANT: May I know your connection limit?

USER: Sure, I need a single connection.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Do you need any airline preference?

USER: I am okay with any airline.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: No worries, thank you.

ASSISTANT: Thanks for reaching us, have a nice day.