You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you aid me to change my reservation due to an emergency?

ASSISTANT: Sure, we are here to assist you. On whose name, the reservation has been made earlier?

USER: Angela Johnson here.

ASSISTANT: Please stand by.

USER: Ok.

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

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.