You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I render you?

USER: I made a reservation earlier in the wrong date unknowingly so, I want to cancel that reservation. Please help me with it.

ASSISTANT: Sure, we will help you. Please provide me your name to check your details in our database.

USER: My name is Emma Wright.

ASSISTANT: Emma Wright, sorry to inform you that there was no reservation exist on your name.

USER: That's ok, thanks for the information.

ASSISTANT: Thank you for contacting us.