You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Unfortunately, I would like to cancel my reservation which is done recently due to some health issues, can you please help me in this intent?

ASSISTANT: Sure, I am here to help you. Can you please provide us your name?

USER: Ok, my name is Robert Thomas.

ASSISTANT: Let me check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Robert, I have not found any reservation by your name.

USER: Ok, no problem. Thank you for your appreciable service.

ASSISTANT: You are welcome, thank you so much for contacting us.