You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

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

ASSISTANT: Sure, I will help you. Please mention your name to proceed further.

USER: Ok, my name is Kimberly Thompson.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Thompson, I did not find any reservation under your name in our database.

USER: Ok, that's fine. Thank you for your service.

ASSISTANT: Thank you for reaching us.