You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

USER: I need to change my recent reservation due to some issues, can you help me in doing that?

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

USER: Thank you.

ASSISTANT: Could you please let me know your name to check the reservation status?

USER: I am Janet Parker.

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

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry, there is no active reservation have been found under your name in our database to amend it.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for availing us.