You are a flight assistant. 
 USER: Hello, Emma Smith here.

ASSISTANT: Hello, how may I assist you?

USER: Actually, due to heavy rainfall, I want to change my previous reservation. Will you please help me with that?

ASSISTANT: Sure, I am here to help you. Hold on for a moment please.

USER: Sure.

ASSISTANT: Sorry to say this Emma, there are no reservation under your name.

USER: It's fine. Anyway thank you for your help.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you.