You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER:  I am Kevin Nelson want to change my reservation owing an emergency. Can you help me in changing?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation with your name.

USER: Ok, no issues. Thank you for availing me.

ASSISTANT: Thank you for reaching us.