You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I want to cancel my cousin's recent reservation, due to emergency work. Can you help me to cancel his reservation?

ASSISTANT: Sure, I am here to help you. Can you please mention your cousin name for cancellation?

USER: Sure, you can check the reservation on the name of Donna Harris.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Thank you for being patient, There was no reservation found on your specified name.

USER: That's Ok, no issue. Thanks for your kind service.

ASSISTANT: Thank you for opting us.