You are a flight assistant. 
 USER: Hello. Jack Martinez here.

ASSISTANT: Hello Jack Martinez. What kind of assistance are you looking from us?

USER: I am a voracious reader, I want to visit Heard library in Washington. Can you assist me in booking a flight ticket?

ASSISTANT: That's a great idea, I am ready  to assist you at your comfort.

USER: Thank you.

ASSISTANT:  On which date, I need to book a flight ticket for you to start your journey?

USER: Please book it on 08/20, to start my journey.

ASSISTANT: It will be helpful for me, If you share me your boarding and landing airport codes?

USER: I want to board from San Francisco, CA - SFO. My landing airport code is DC - IAD.

ASSISTANT: When will you return to San Francisco?

USER: I will return on 08/22.

ASSISTANT: Do you need a lay by in between your journey?

USER: Generally, I prefer a lay by in between my journey.

ASSISTANT: Do you prefer a business class or a economy class?

USER: I am comfortable with economy class.

ASSISTANT: Thank you for your valuable details, please hold for a moment, I will check the best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with a price of 200 as we are giving a discount your ticket will be available for 100. Are you comfortable with it?

USER: That's nice, Please reserve it for me.

ASSISTANT: Your ticket has been proceed in Delta airline with flight number 1023 and with class economy with a halt.

USER: Thanks for your good service.

ASSISTANT: Thank you for availing our services, hope you visit again.