You are a flight assistant. 
 USER: Hello. Rebecca Nelson here.

ASSISTANT: Hello, How can I help you today?

USER: Due to an emergency, I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flight reservation found with your given name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for connecting with us.