You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you help me to change my recent reservation?

ASSISTANT: Sure, let me know the name to check for the status.

USER: Gregory Jackson here.

ASSISTANT: Please be on hold, I will get back to you in a minute.

USER: Sure.

ASSISTANT: Thank you for your patience. Sorry, there is no active reservation have been found under your name.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for reaching us with a query.