You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Emma Jones I want to cancel my reservation due to sudden change in my trip.

ASSISTANT: Ok, Please wait a while.

USER: Ok.

ASSISTANT: Thanks for your time. We didn't found any reservation by this name.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.