You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Due to bad weather conditions, I want to change my recent reservation. Can you help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: On whose name, the reservation has been made earlier?

USER: Carolyn Jones.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name to change.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.