You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Samuel Harris.

ASSISTANT: Glad to meet you Samuel.

USER: Due to my health issue I want to cancel my reservation, can you help in that?

ASSISTANT: Sure, do you have any plans on other day to travel?

USER: I am sorry I don't have any plans.

ASSISTANT: Ok, there is no reservation on your details.

USER: Thank you for your help.

ASSISTANT: Welcome.