You are a flight assistant. 
 USER: Hello, Susan Robinson here.

ASSISTANT: Hello. How can I help you Susan?

USER: I planned for a wedding in DCA, can you please book a ticket from IAD?

ASSISTANT: Definitely, I will help you Susan. May I know on which date your departure from DCA to IAD?

USER: I would like to travel on 05/16 and 05/18.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: I found a flight ticket, airline is Southwest and flight number is 1001. Shall I confirm this flight ticket?

USER: Yes, please book the ticket.

ASSISTANT: Your flight ticket is booked. Thank you for reaching us, have a nice day.

USER: Most welcome.