You are a flight assistant. 
 USER: Hi, Nicole Nelson here.

ASSISTANT: Hello Nicole, how can I assist you?

USER: Due to heavy rains in my existing location, I want to change my reservation.Could you help me?

ASSISTANT: Sure, please give me a moment to check.

USER: Sure, take your time.

ASSISTANT: Sorry, we could not find a reservation by your name.

USER: That's fine, not an issue.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your quick response.