You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Please help me to cancel my resent reservation due to my health issues.

ASSISTANT: For cancelling the reservation. May I know your name?

USER: I am Debra Thompson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Debra Thompson, I found a reservation and I cancelled sucessfully with your criteria.

USER: Thank you for your help.

ASSISTANT: You are most welcome, thank you very much for utilizing our agency.