You are a flight assistant. 
 USER: Hello.

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: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your previous reservation?

USER: I am Katherine Perez.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: Ok, no issues. Thanks for your kind assistance.

ASSISTANT: Thank you for reaching us, have a great day.