You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please book a ticket to Phoenix, PHX to enjoy with my friends?

ASSISTANT: Sure, I will help you. Please help me with your planned travel dates.

USER: My travelling dates are Oct 14 and Oct 16.

ASSISTANT: Please help me with your name.

USER: Sure, I am David Walker.

ASSISTANT: Do you need a direct or connecting flight?

USER: I want one connection.

ASSISTANT: Please help me with your source airport code.

USER: My source airport code is OAK.

ASSISTANT: Please help me with your preferred class to fly.

USER: I am comfortable with any class.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: We have a connecting flight operated by Southwest Airlines with a fare of 100. Is it ok for you?

USER: Yes, please proceed.

ASSISTANT: I have booked your ticket in flight-1021. It departs at 19 PM and arrives at 23 PM.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a great time.