You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: Due to some health issue, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, please help me with your good name?

USER: Sure, I am Sarah Collins.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: There is no recent reservation found on your name in our data base.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.