You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Samantha Walker due to some conference meeting, I am going to cancel my reservation. Can you please help me in cancelling the reservation?

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found basis on your details.

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

ASSISTANT: Most welcome.