You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Jennifer Smith. Owing to an emergency, I want to change an existing reservation. Could you help me in changing the reservation?

ASSISTANT: Sure, Please wait for a while.

USER: Ok.

ASSISTANT: No reservation done on your name.

USER: Not an issue.

ASSISTANT: Thank you for approaching us.

USER: Thank you.