You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Please book a flight ticket from EWR to DTW?

ASSISTANT: May I know your trip dates?

USER: My journey dates are June 23 and June 25.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your good name?

USER: I am Pamela Miller.

ASSISTANT: There is no flight found with your required dates to travel.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.