You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Helen Collins. I want to cancel my recent reservation, as my health is not good to travel. Can you please help me with this?

ASSISTANT: Sure Helen, please wait for a minute while I search for the status of your reservation.

USER: Sure.

ASSISTANT: Helen, there is no reservation found with your details.

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

ASSISTANT: Thank you for contacting us.