You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Ronald Roberts.

ASSISTANT: Ronald Roberts, how may I render you?

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

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

USER: Sure, I will wait for your response.

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

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

ASSISTANT: Thank you for reaching us.