You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me in changing my recent reservation?

ASSISTANT: Sure, we are blissful to help you. Can I know your good name to proceed further?

USER: I am Betty Smith.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found on your name in our database to change it.

USER: No problem, thank you for your assistance.

ASSISTANT: Thank you for availing us.