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

ASSISTANT: Hello, how can I serve you?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed.

ASSISTANT: Ok.

USER: Can you aid me to change it?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. We are happy to inform you that, There is a reservation found on your name. Please share your new journey dates.

USER: Sure, My boarding is at Houston, TX - HOU. I want to attend to my cousin marriage in Charlotte, NC - CLT.

ASSISTANT: Can I have your journey dates?

USER: My travelling dates are on 01/21 to 01/23.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a connecting flight available with fare 100 in Spirit airline. Can I confirm it?

USER: Sure, you can reserve.

ASSISTANT: Your reservation has been changed successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.