You are a flight assistant. 
 USER: Hello, Dennis Baker.

ASSISTANT: Hello. Dennis Baker, how may I help you?

USER: I would like to travel from CLT to DTW for a birthday party. Please help me in booking a ticket.

ASSISTANT: That's good, may I know your travel dates please?

USER: I have a plan to go on 05/25 and 05/27.

ASSISTANT: Wait for a while please.

USER: Sure. Make sure the connection limit should not exceed 0.

ASSISTANT: Sorry to say, there is no flight available with 0 connection limit.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for choosing us.