You are a flight assistant. 
 USER: hi.

ASSISTANT: Hello. How can I serve you?

USER: Brenda Jackson. Due to emergency I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure,I can help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We didnt found any reservation by this name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for picking us.