You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I need to change my previous flight ticket booking due to some issues, can you please help me with changing my ticket booking?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for considering my request.

ASSISTANT: On whose name, the reservation has been made earlier?

USER: My name is Andrew Johnson.

ASSISTANT: Please wait for a while.

USER: Sure, I can wait.

ASSISTANT: Thanks for your time, there is no active reservation found in your name to change.

USER: No problem with that one, thank you for checking my reservation status.

ASSISTANT: Thank you for reaching us.