You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency I had to request fir this change reservation, Can you please help me in that?

ASSISTANT: Sure, I am here to help you. May I know your name to check with the status?

USER: My name is Deborah Green.

ASSISTANT: Please wait moment while I check with the status.

USER: Sure.

ASSISTANT: Thank you for waiting. Deborah Green, regret to inform that there is no active reservation found under your name to amend.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching our agency.