You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I need to book a flight ticket with the name Samantha Adams, can you book me a ticket with price under 500?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: As I want to go to flower festival which is on 03/25 and I intend to return on 03/27.

ASSISTANT: Let me know your preferable airport codes please?

USER: I would like to travel from PHL to ORD.

ASSISTANT: Thanks for giving your details, we are happy to inform you, we found a flight on your details with airline AA, flight number: 1002. Shall I proceed for booking?

USER: Please proceed with this booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you so much for choosing us.