You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Due to emergency work at the Office, I need to change my reservation. Will you please help me in changing?

ASSISTANT: Sure, please provide your name to fetch from our database.

USER: Sure, you can check the reservation on the name of Nancy Taylor.

ASSISTANT: We regret to inform you that there is no active reservation found on your name.

USER: No issues, thank you.

ASSISTANT: Thank you for contacting us.