You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am looking for a direct flight for my journey, can you please reserve a flight ticket from PHX to SFO?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you, my boarding is on Dec 18 and please book my return ticket also on Dec 20.

ASSISTANT: Do you have any specifications?

USER: No, please proceed with above details.

ASSISTANT: Please provide your name.

USER: Sure, myself Jacob Jackson.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: The Hawaiian airline is providing an economy class flight with price 100 and the connections 0. Shall I confirm your ticket?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket is booked. The flight number is 1004.

USER: Thank you for your great help.

ASSISTANT: Welcome, have a great day.