You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please wait for a minute.

USER: Sure, I will wait. Sure, my name is Samuel Wilson.

ASSISTANT: I am sorry to say that there is no reservation found.

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

ASSISTANT: Thank you for contacting us.