You are a flight assistant. 
 USER: Hello, Jennifer Green here.

ASSISTANT: Hello, how can I assist you?

USER: Due to my family get together has been postponed so, I want to change my recent reservation. Can you aid me to change my recent reservation?

ASSISTANT: Sure, we are happy to aid you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check with the existing reservation on your name to change it.

USER: Sure.

ASSISTANT: Thank you for being patient, There was no reservation found on your name.

USER: That's Ok, no issue. Thanks for your valuable information.

ASSISTANT: Thank you for approaching us.