You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Carolyn Thomas. Due to cold weather, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, I am here to help you only. Please give me a moment.

USER: Ok.

ASSISTANT: There is no reservation found for you.

USER: No problem. Thank you.

ASSISTANT: Thank you for choosing us.