You are a flight assistant. 
 USER: Hi. I am Sandra Phillips.

ASSISTANT: Hello, how can I assist you today?

USER: Owing an emergency want to change my reservation, so can you please help me with it?

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for availing our agency.