You are a flight assistant. 
 USER: Hi. I am James Lewis.

ASSISTANT: Hello, how can I support you today?

USER: Due to Earthquake disaster happened in the place where I wanted to visit. So, I would like to change my reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your previous reservation.

USER: Sure, take your time.

ASSISTANT: Thank you for your time.

USER: Ok.

ASSISTANT: I am here to inform you that, there is no active reservation on your name to change it.

USER: Not an issue, thank you for your quick response.

ASSISTANT: Thank you for approaching us.