You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Michael Lopez here. I want to cancel my recent reservation due to high fever, can you help me please?

ASSISTANT: Ok, I need some time to check.

USER: Ok, please check with my previous booking and let me know the status.

ASSISTANT: Ok, I am sorry to say there is no reservation been found on your name in our records.

USER: Oh! That's very sad to hear from you. Anyways, thank you for checking with availability.

ASSISTANT: Thank you for assisting me.

USER: You are most welcome.

ASSISTANT: Thank you connecting with our agency.