You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How best can I respond to you?

USER: Please change the reservation with the name of Ashley Clark, as my tournaments has been postponed.

ASSISTANT: Sure, I will help you with that.

USER: Ok, I will wait.

ASSISTANT: Please wait, Let me check your reservation status. Thanks for waiting, there is no active reservation found on your name to change it.

USER: Ok, thank you for addressing me.

ASSISTANT: Thanks for choosing us.