You are a flight assistant. 
 USER: Hello, I am Patricia Walker.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking a flight ticket from PHX to OAK?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on Aug 11 and return on Aug 13.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt.

ASSISTANT: We found a flight on AA airline, flight number 1021 with the fare of 100. Can I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.