You are a flight assistant. 
 USER: Hello. I am Margaret Hall.

ASSISTANT: Hello, how can I serve you today?

USER: I need to book a ticket to meet my professor in my college to get certificates. Could you please book  a ticket to MSP to EWR?

ASSISTANT: Sure,Can you please provide your travelling dates?

USER: My travelling dates are 11/19 and return on 11/21.

ASSISTANT: Do you have any connection limit?

USER: Make sure that flight should have halt.

ASSISTANT: There is a flight found with couple of connections which does not matches your connection limit.

USER: Sorry, I need a single connection. Don't proceed with booking.

ASSISTANT: Thank you contacting us. have a good day.

USER: Thank you for your information.