You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My meeting with CEO of my company has been postponed. I would like to change my existing reservation. Can you help me?

ASSISTANT: Sure, I will help you. May I know your name please to check your reservation status?

USER: My name is Betty Hall.

ASSISTANT: Betty, I found your reservation. Please provide your airport codes.

USER: I would like to travel from CLT to DEN.

ASSISTANT: May I know your journey dates please?

USER: I have a plan to travel on 02/06 and return on 02/08.

ASSISTANT: I found a flight for you in JetBlue airlines with price 100. Can I book your ticket?

USER: You can book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1017.

USER: Thank you for your assistance.

ASSISTANT: Thank you for approaching us.