You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Carolyn Hernandez is here.

ASSISTANT: Ok.

USER: Owing to have an emergency, I want to change my reservation. Can you help me in this?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any reservation on your name.

USER: Fine. Thank you for your information.

ASSISTANT: Thank you for approaching us.