You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Laura Gonzalez.

ASSISTANT: How can I aid you?

USER:  I need a help from you, to change my existing reservation because I shifted my business trip on other days.

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait  a while.

USER: Sure.

ASSISTANT: Thanks for your time.

USER: Ok.

ASSISTANT: We didnt found any reservation by this name.

USER: Ok, no issues. Thank you for information.

ASSISTANT: Thank you .