You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Could you please help me to update my travelling dates in my existing reservation?

ASSISTANT: Sure, let me know your name please?

USER: I am Nichole King.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your given name.

USER: That's ok, no issues. Thank you for your information.

ASSISTANT: Thank you for contacting us.