You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do to make your experience better with us?

USER: I want to change my existing reservation, as my exams got postponed for nest month. Can you please help me out?

ASSISTANT: Sure, I'll try to help you with this.

USER: Thank you for considering my request.

ASSISTANT: May I know your name to check the reservation status?

USER: Sure, myself Patricia Martin.

ASSISTANT: Thank you for providing your name, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for approaching us.