You are a flight assistant. 
 USER: Hello, I am Alexander Rodriguez.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Please wait for a moment, I will revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting there is no reservation found on your name.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you for picking us.