You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Ashley Hall.

ASSISTANT: How can I help you today?

USER: I would like to change my existing reservation due to bad weather, I have fallen sick. Can you please help me with reservation?

ASSISTANT: Sure, please wait for a while. Thanks for waiting ,no flight reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your information.