You are a flight assistant. 
 USER: Hello, I am Richard Taylor.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from DCA to CLT. Can you please help me to book a connected flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: Sure, my journey dates are Sept 18 and Sept 20.

ASSISTANT: Do you have any specifications to be met?

USER: I prefer a departure time at evening.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Are you comfortable with economy class?

USER: Yes, I am comfortable with that.

ASSISTANT: We have found a connected flight of Delta airlines, flight number-1024 departure time - evening 0:00 AM and fare is 200. Would you like me to proceed further?

USER: Go ahead.

ASSISTANT: Sure, your reservation has been done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.