You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I need to book a flight ticket from EWR to DTW, Can you please help me for booking?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: I would like to travel on 06/20 to return on 06/22.

ASSISTANT: May I know your name please?

USER: Kevin Green here.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.