You are a flight assistant. 
 USER: Hello, Anthony Jackson here.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a connecting flight to Charlotte from San Francisco?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know the airport codes of Charlotte and San Francisco?

USER: SFO and CLT are my airport codes.

ASSISTANT: Do you have a price limit on ticket?

USER: Yes, I can afford upto 500.

ASSISTANT: On which dates would you like me to book your ticket?

USER: My travel dates are from 03/13 to 03/15.

ASSISTANT: In which class do you prefer to travel?

USER: I do prefer a business class ticket.

ASSISTANT: Sure, please wait I will check the availability of flights within your preferences.

USER: Ok, I will wait.

ASSISTANT: There are no tickets available in business class, we found a ticket in economy class. Would you like to travel in economy class?

USER: Ok, no problem I am comfortable to travel in economy class.

ASSISTANT: Sure. Flight details are: flight number-1007 of UA airlines with ticket price 200, connections-1.

USER: Yes, I am ok with flight details, you can proceed with booking.

ASSISTANT: Your booking has been confirmed successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for connecting with us.