You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Rodriguez.

ASSISTANT: How may I aid you today?

USER: As my plans to visit Chicago got postponed, can you please help me in changing my existing reservation to Chicago?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that there is no active reservation found under your name.

USER: Ok, not an issue. May be something went wrong while booking the ticket previously. Thank you for providing information.

ASSISTANT: Thanks for reaching us.