You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Myself Daniel Moore, can you help me to change the flight reservation which I did recently?

ASSISTANT: Sure, I am here to help you. Please wait a moment.

USER: Ok, please take your time. I will wait for your response.

ASSISTANT: Daniel, no reservation has been found on your name in our database.

USER: That is ok, thank you.

ASSISTANT: Thank you for reaching us.