You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jason Hall.

ASSISTANT: How may I help you today?

USER: Can you change my recent reservation?

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Based on your request, there is a no reservation with your name.

USER: It's ok, thanks for checking.

ASSISTANT: It's my pleasure.