You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to change my existing reservation due to some technical issues. Can you help me with that?

ASSISTANT: Ok, please wait a moment. I will check the reservation records.

USER: Sure.

ASSISTANT: May I know your name?

USER: I am Debra Thompson.

ASSISTANT: Ok, the reservation records I had checked for your reservation had given a result as not found. Thank you for choosing our agency.