You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I provide assistance for you?

USER: I am Elizabeth Martinez. I want to change my existing reservation due to bad weather condition, can you help me in that?

ASSISTANT: Sure, I am here to help you. Please, wait a minute.

USER: Sure.

ASSISTANT: Thanks for your time, I am happy to inform you that, we found a reservation on your name. Can you please share your new journey dates?

USER: My source and destination airport codes are NC - CLT, CO - DEN. My departure day is 09/06, return day is 09/08.

ASSISTANT: Give me a minute to search for the flight availability.

USER: Sure.

ASSISTANT: Thank you for your time. There is a flight available with fare 200 having couple of connections in Southwest airline. Are you comfortable with it?

USER: You can reserve it.

ASSISTANT: Your reservation has been confirmed with flight number 1004.

USER: Thank you for your good service.

ASSISTANT: Thank you for availing us, have a safe journey.