You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, my sky dive has been cancelled, so I want to change my reservation. Can you help me to change my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please share your good name?

USER: I am Alexander Hernandez.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: Ok, not an issue. Thanks for your kind assistance.

ASSISTANT: Thanks for choosing us.