You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Betty Edwards.

ASSISTANT: How may I help you?

USER:  Can you please change my reservation, due to an emergency?

ASSISTANT: Betty Edwards, I am here to help you for this. Let me check your reservation status in our records.

USER: Sure.

ASSISTANT: Sorry for inconvenience, no reservation is found with your criteria.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you very much for contacting our agency.