You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: Myself Scott Smith. I want to change my travel dates in my previous reservation so can you please help me with that?

ASSISTANT: Sure, please wait for few minutes.

USER: Ok, thank you.

ASSISTANT: There is no existing reservation found on your name in our records. Thank you for reaching us.

USER: Oh! It's ok no problem. Thank you for your information.