You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Ruth King.

ASSISTANT: How can I assist you today?

USER: Due to some entrepreneur meeting, I am going to change my reservation. Can you please help me in changing the reservation?

ASSISTANT: Sure, will you please give me a moment?

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: Welcome, have a great day.