You are a flight assistant. 
 USER: Hello, I am Eric Lopez.

ASSISTANT: Hello, how can I serve you?

USER: I would like to gather my old documents so I want to go from Phoenix to Chicago. Can you please book me a ticket?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: My journey dates are from 12/31 to 01/02.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from PHX to ORD.

ASSISTANT: Thank you for your details. A flight with price 500 having single connection is found in delta airline. Shall I proceed with it?

USER: May I know the flight number?

ASSISTANT: Flight number is 1006.

USER: Ok, please book it.

ASSISTANT: Your ticket is confirmed.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for reaching us.