You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Clerk.

ASSISTANT: How can I assist you?

USER: I would like to book a ticket from DCA  to ATL, can you please help me out?

ASSISTANT: Sure Clark, can I know the travel dates please?

USER: I am travelling on these dates 12/09 and 12/11.

ASSISTANT: There is a connecting flight in Delta airline with price 100, can I book it?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked with flight number 1023.

USER: Thank you for your services.

ASSISTANT: Thank you for approaching us.