You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: Jonathan Anderson here. I want to change my existing trip due to some personal issue. Can you please help me for this one?

ASSISTANT: Sure, please wait a moment I will check the reservation status.

USER: Sure, take your time.

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

USER: No issues, thank you for the information.

ASSISTANT: Thank you for availing us.