You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

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

ASSISTANT: Sure, will you please let me know on what name the reservation was made formerly?

USER: Thank you for your response, my name is Michael Adams.

ASSISTANT: Ok, let me check the status of the reservation and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting, I have gone through the reservation list but could not find any active reservation by your name.

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

ASSISTANT: Thank you for approaching us.