You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please check if there is any reservation active by the name Emily Carter? if it is active I need to change it.

ASSISTANT: Sure, we are here to help you. Kindly share your name.

USER: I have already mentioned above.

ASSISTANT: Please wait a moment I will check the reservation and get back to you.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thanks for reaching us.