You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Donald Hill.

ASSISTANT: How can I render you today?

USER: I would like to travel from CLT to ORD, could you help me out?

ASSISTANT: Sure, I can help you with that. May I know your preferable dates of your journey?

USER: My preferable dates are from 05/12 to 05/14.

ASSISTANT: AA airlines is having a flight on that route with travel charge of 200, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: I have successfully booked your ticket with flight-1005, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great day.