You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to celebrate my brother birthday as a sudden surprise to him, I want to book a ticket. Please help me out.

ASSISTANT: Sure, please provide me your name to proceed further.

USER: My name is Angela Green.

ASSISTANT: Can you please let me know your journey dates?

USER: My journey dates are from 08/13 to 08/15.

ASSISTANT: May I know your preferred airport codes please?

USER: My airport codes are from ORD to PHX.

ASSISTANT: Please hold on a minute.

USER: Sure.

ASSISTANT: Angela, there is a flight with price 400 and connections 1 available for you. Shall I book the ticket?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is confirmed with Delta airlines and the flight number is 1022.

USER: Thank you for your response in booking my ticket.

ASSISTANT: Thank you for choosing us, have a good day.