You are a flight assistant. 
 USER: Hello, I am Thomas King.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book me a ticket with the fare of 500?

ASSISTANT: Sure, may I know your journey dates?

USER: I would like to leave between 04/14 and 04/16.

ASSISTANT: Kindly, mention your connection limit.

USER: I need a direct flight.

ASSISTANT: Please, share your airport codes.

USER: My preferable airport codes are from CLT to DTW.

ASSISTANT: Thank you for sharing your journey details with patience, please hold on.

USER: Ok.

ASSISTANT: I have found a connecting flight to DTW, Can I proceed?

USER: No, don't proceed for booking.

ASSISTANT: Ok. Thank you for reaching us. Hope to serve you again.

USER: Thanks for your service.