You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I would like to change my existing reservation due to abnormal whether conditions, could you help me in doing that?

ASSISTANT: Sure, I am glad to assist you.

USER: Thank you.

ASSISTANT: Can you please share your name?

USER: I am Jerry Green.

ASSISTANT: Thanks for your name, please wait.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, no reservation was found on your name to change.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for opting us.