You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need to change my existing reservation due to bad weather condition at my destination point. Can you help me in doing that?

ASSISTANT: Sure, please mention your name to check your reservation details in our database.

USER: My name is Patricia Adams.

ASSISTANT: Thank you, please wait for a while.

USER: Sure.

ASSISTANT:  I am very sorry to inform you that there is no reservation found under your name in our database.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.