You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Emma Harris. I want to attend a marriage function at DCA, can you help me to book a flight ticket from DTW?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I am travelling from Apr 19 to Apr 21.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for reaching us.