You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Raymond King. Due to heavy rains cricket match got postponed, so I need to change my existing reservation, Could you please help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your reservation status and get back you.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there is no active reservation found on your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for availing us.