You are a flight assistant. 
 USER: Hi. I am Emily Carter.

ASSISTANT: Hello, how may I best support you now?

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

ASSISTANT: Sure, I can change your reservation right now. Just wait for sometime.

USER: Ok.

ASSISTANT: Thanks for being waiting. Unfortunately, there is no reservation found on your name.

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

ASSISTANT: Thanks for approaching us.