You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I have planned to go for ORD but the climatic condition is not good in ORD, so can you please change my existing reservation?

ASSISTANT: Sure, can you please provide your name to check the details of your reservation?

USER: Myself Linda Allen.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: Ok, fine not an issue.

ASSISTANT: Is there anything else I can help you with?

USER: No. Thank you for your information.

ASSISTANT: Thank you and have a nice day.