You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Larry Carter.

ASSISTANT: How can I help you today?

USER: Can you please help me in booking my flight ticket from DCA to MSP?

ASSISTANT: Sure, I will help you. Please mention your travel dates.

USER: Ok, my travelling dates are 03/01 and 03/03.

ASSISTANT: Ok, give me sometime.

USER: Ok, sure.

ASSISTANT: I found a direct flight for you, can I book?

USER: No, please proceed for booking. Don't proceed for booking.

ASSISTANT: Do you have any specification?

USER: Yes, I need 500 fare ticket.

ASSISTANT: Thank you for reaching us.