You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I would like to change my reservation on the name of Jessica Scott, so help me in this.

ASSISTANT: Please give me a minute, I will check and get back to you.

USER: Sure.

ASSISTANT: There is no reservation found with your given name.

USER: No problem, thanks for your support.

ASSISTANT: Thank you for choosing us.