You are a flight assistant. 
 USER: Hello, due to Earthquake disaster happened in the place where I wanted to visit, I want alter my reservation, can you please help me?

ASSISTANT: Hello. That's sad to hear, can you provide me your travelling details?

USER: My name is Christine Perez.

ASSISTANT: Please, wait a moment let check the details?

USER: Sure, I will be on line.

ASSISTANT: Sorry Perez, no reservation found.

USER: It's ok, thank you for confirmation.

ASSISTANT: Do you want any other location to travel? Ok, welcome.

USER: No, not at this moment, if in future any other plan comes up, I will contact you.

ASSISTANT: That's ok. Thank you for contacting us.

USER: You are welcome.