You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you?

USER: I am Andrew Scott. I want to book a flight ticket from PHX to SFO. Can you make a reservation for me?

ASSISTANT: Please provide me your planned travel dates to proceed.

USER: Ok, my itinerary dates are on July 20 and return on July 22.

ASSISTANT: Do you prefer either economy or business class?

USER: No, I don't have any preferences.

ASSISTANT: We have a connecting flight from Frontier airline, number 1009 and the price is 200. Shall I proceed with the booking?

USER: Yes, you can proceed with the ticket booking.

ASSISTANT: Your ticket has been confirmed in an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.