You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me to book a flight from DFW to DEN?

ASSISTANT: May I know your travel dates?

USER: I want to travel on July 13 and need to return on July 15.

ASSISTANT: Do you prefer connecting flight?

USER: I am looking for a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Dorothy Wilson.

ASSISTANT: We found a flight in an economy class with 1 connection in Delta airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Ok, please proceed.

ASSISTANT: Your booking is done with flight number 1025.

USER: Thank you.

ASSISTANT: Thank you for reaching us.