You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from PHL to IAD, can you help me?

ASSISTANT: Sure, please provide your journey dates.

USER: My travel dates are 12/15 and 12/17.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: AA airlines with flight 1001 is available.

USER: Book the ticket in the name of James Lee.

ASSISTANT: Lee, your ticket is reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.