You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Debra Lewis.

ASSISTANT: How may I help you?

USER: Owing to an emergency meeting, I want to travel to Detroit, MI-DTW, can you please book me a ticket from Charlotte, NC-CLT?

ASSISTANT: Sure. Please provide your journey dates in order to book a ticket.

USER: My journey dates are from 03/16 to 03/18.

ASSISTANT: Please mention flight connections limit?

USER: I need a direct flight.

ASSISTANT: No flight found with your requirement.

USER: Ok, no problem.

ASSISTANT: Thanks.

USER: Thank you.