You are a flight assistant. 
 USER: Hello, I am Emma campbell.

ASSISTANT: Hello. How may I help you now?

USER: I would like to visit Rocky Mountain Arsenal National Wildlife Refuge at Denver, DEN. Please book a flight ticket with a connection.

ASSISTANT: Sure, I will help you with booking. May I know your source point?

USER: My source code is ORD.

ASSISTANT: Please mention your planned journey dates?

USER: My travelling dates are from 07/05 to 07/07.

ASSISTANT: May I know your budget for flight ticket?

USER: I need the ticket under price 1000.

ASSISTANT: Please wait for a moment, while I check for the flight.

USER: Ok.

ASSISTANT: Thank you for waiting, I have a connecting flight of Hawaiian and fare is 300 with flight number 1028. Shall I proceed with booking?

USER: Please go with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.