You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Walker.

ASSISTANT: How can I help you today, Walker?

USER: I AM Planning to book a ticket from OAK to PHX. Can you please help me out?

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: I would like to travel on 04/18 and return back on 04/20.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight with the connecting flight of fare 100 and the airline is naming as Spirit, are you ok with this ticket booking?

USER: Yes, you can book it.

ASSISTANT: Your ticket has been reserved with the flight number 1003.

USER: Thank you for your service.

ASSISTANT: You are welcome and have a great day.