You are a flight assistant. 
 USER: Hello, I am Jessica Wright.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me to book a flight ticket from ATL - PHX?

ASSISTANT: May I know when you are planning to depart and arrive?

USER: I am planning to depart on 03/21 and arrival on 03/23.

ASSISTANT: Kindly mention your specifications?

USER: I need a halt. My price limit is 500.

ASSISTANT: There is a flight available with an airline JetBlue of flight 1003 and price is 100. Would you like me to proceed?

USER: Please proceed to book.

ASSISTANT: Your seat has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.