You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, will you mention your name for checking the reservation?

USER: Sure, my name is Samantha Williams.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: There is no reservation found under your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Welcome, have a great day.