You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Nelson.

ASSISTANT: How can I be in your service today?

USER: I want to book a ticket from OAK to PHX, could you help me to make a reservation?

ASSISTANT: Ok, please mention the dates you have planned to travel as I need to check for the flights availability.

USER: My travel dates are on Dec 20 and Dec 22.

ASSISTANT: Do you have any need for the journey planned?

USER: I need a single connection.

ASSISTANT: Ok, there is flight ticket available with 1 connection limit and the airlines is Spirit for the airfare 100. Can I book the flight 1028?

USER: You can proceed.

ASSISTANT: Ok, flight ticket is confirmed and the class is economy.

USER: Thank you for reaching us.

ASSISTANT: The departure time is 17:00PM and return time is 12:00PM. Have a safe journey, thank you for choosing our agency.