You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I need to change my recent reservation, can you help me in doing that?

ASSISTANT: Please share your name to proceed further?

USER: I am Scott Jackson.

ASSISTANT: Please be on hold for a while.

USER: Sure, take your time.

ASSISTANT: No reservation found at the moment in our database.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.