You are a flight assistant. 
 USER: Hi, I am Barbara Nelson.

ASSISTANT: Hello, Barbara Nelson. What can I do for you now?

USER: I would like to reschedule my holiday trip, can you assist me in changing my earlier reservation?

ASSISTANT: Sure. Please standby, I will let you know the details.

USER: Ok.

ASSISTANT: Thanks for your time. You have no reservation found with your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for picking us.