You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I render you today?

USER: Scott Hernandez here. Please book me a flight ticket to Oakland as I have an emergency case to deal with. Can you book me a ticket within the range 500?

ASSISTANT: Sure, May I know on what dates would you like to travel?

USER: I want to travel on 03/26, and need to catch return flight on 03/28.

ASSISTANT: Sure, please share your journey airport codes.

USER: I need to leave from my nearest airport CLT to reach OAK.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Thanks for being hold.

USER: Ok.

ASSISTANT: We are glad to inform you that, we found a flight in AA airline with the cost of 200 and single connection. Can I proceed for booking?

USER: Proceed with the booking.

ASSISTANT: Sure, your ticket has been confirmed and the flight number is 1015.

USER: Thanks for your assistance.

ASSISTANT: Thank you for availing our service.