You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Benjamin Anderson want to visit PHL, can you book a ticket from DTW?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Sure, my travelling dates will be 04/11 and 04/13.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Southwest airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Yes, proceed.

ASSISTANT: Benjamin Anderson, your ticket is booked with flight number 1009.

USER: Thank you.

ASSISTANT: Thank you, have a safe journey.