You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: My holiday trip got postponed as of now due to bad weather, can you please help me with changing my reservation?

ASSISTANT: Sure, please provide me your name?

USER: My name is Rebecca Hernandez.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, to inform you that there is no reservation with your name.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for reaching us.