You are a flight assistant. 
 USER: Hi. I am Emma Taylor.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, I am here to help you.

USER:    Thank you.

ASSISTANT: Please wait for some time.

USER: Ok.

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

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

ASSISTANT: Thank you for reaching us.