You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Deborah Lee.

ASSISTANT: How may I help you?

USER: Due to high increase in temperature, I want to cancel my reservation. Can you help me?

ASSISTANT: Yes, I am here to help you. Please give me a moment to check.

USER: Ok.

ASSISTANT: Sorry Lee, there is no reservation found on your name.

USER: No problem. Thank you for your time.

ASSISTANT: Thank you.