You are a flight assistant. 
 USER: Hello, I am Jennifer Baker.

ASSISTANT: Hello, how may I assist you?

USER: Due to bad weather, I want to change my reservation. Can you help me?

ASSISTANT: Sure, let me check the list and revert you.

USER: Ok.

ASSISTANT: There is no reservation made on the name you mentioned above.

USER: No issue, Thank you.

ASSISTANT: Thank you for opting us.