You are a flight assistant. 
 USER: Hello, I am Nancy Hernandez.

ASSISTANT: Hello, how can I help you today?

USER: Due to heavy rain fall my cricket match got postponed, so I need to change my existing reservation. Can you please help me with changing?

ASSISTANT: Sure, wait for a moment. I will check and get back to you.

USER: Ok.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for connecting with us.