You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to some technical issues my meeting has been postponed. So, I want to change my trip dates. Can you please help me to change my reservation?

ASSISTANT: Can I know your name?

USER: Sure, my name is George Anderson.

ASSISTANT: Sorry, no reservation found by your name. Thank you.

USER: Ok, not a issue. Thank you for reaching us.