You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Benjamin Robinson, want to travel from IAD to DCA. Please help me in booking my ticket.

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: Sure, my travelling dates are from 07/23 to 07/25.

ASSISTANT: There is a connecting flight 1018 of Spirit airlines, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your booking is done, have a nice day.

USER: Thank you.

ASSISTANT: Welcome.