You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Sandra Garcia, there is one reservation due to some problem I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no reservation found with your name.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.