You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: As there is a sudden change in climate at my destination, I want to change my existing reservation. Can you please help me with this?

ASSISTANT: Sure, can you share me your good name to proceed further?

USER: My name is Ashley Garcia.

ASSISTANT: I am sorry to inform that, no reservation is found on your name in our database.

USER: Not a problem, thank you.

ASSISTANT: Thank you for opting us.