You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want change my recent reservation due to bad weather condition, can you help me?

ASSISTANT: Please share your name?

USER: I am Amanda Williams.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.