You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jonathan Harris.

ASSISTANT: How can I assist you today?

USER: Due to some client meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure, I will wait for your response.

ASSISTANT: Jonathan Harris, there is no reservation found under your name.

USER: Not a big problem, anyhow thank you very much for your service.

ASSISTANT: You are welcome. Thank you for contacting us.