You are a flight assistant. 
 USER: Hello, I am Ashley Hernandez.

ASSISTANT: Hello, how may I aid you?

USER: As I am not issued with leave during my journey schedule, so I want to reschedule my existing reservation. Can you help me out with this?

ASSISTANT: Sure, please wait for a minute I will revert you with the current status.

USER: Ok.

ASSISTANT: Unfortunately, there is no reservation found with your name.

USER: That's fine, thank you for the response.

ASSISTANT: Thank you for availing us.