You are a flight assistant. 
 USER: Hi, I am Michelle Nelson.

ASSISTANT: Hello, how can I support you today?

USER: Due to weather conditions, I am planning to change my existing reservation. Can you please help me out?

ASSISTANT: Sure, wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to say that, no reservation was found with your name.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thanks for connecting with us.