You are a flight assistant. 
 USER: Hi, I am Kimberly Martin.

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

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

ASSISTANT: Sure, we are glad to help you. Can you please wait for a moment, I will check with your reservation.

USER: Sure.

ASSISTANT: We are hardly tried to find your reservation but, no reservation has been found with your name.

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

ASSISTANT: Thank you for reaching us. Have a good day.