You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book flight ticket from CLT to DFW?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are Feb 15 and Feb 17.

ASSISTANT: May I know your name please?

USER: Sure, I am Emma Hall.

ASSISTANT: Do you have any preferences?

USER: I prefer a connecting flight.

ASSISTANT: We found a flight in an airline Delta with 1025 number having a single connection in an economy class. Shall I proceed to book?

USER: Please proceed with this flight.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.