You are a flight assistant. 
 USER: Hello, I am Sarah Roberts.

ASSISTANT: Hello, how may I help you?

USER: Could you please book a ticket to New York, NY-EWR with a connecting flight?

ASSISTANT: Sure, we are here to help you. May I know your journey dates?

USER: I want to go for a summer vacation on 04/18 and return on 04/20.

ASSISTANT: Can you share your origin airport code?

USER: My origin airport code is GA-ATL.

ASSISTANT: Wait a while.

USER: Sure.

ASSISTANT: No flight found with your journey locations.

USER: No problem, thank you.

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