You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Carter.

ASSISTANT: Stephanie Carter, how may I aid you?

USER: Can you please change my existing reservation as my plan to go for a holiday trip got postponed?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: Sorry, no reservation is available by your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.