You are a flight assistant. 
 USER: Hi. I am Kimberly Hill.

ASSISTANT: Hello, how may I serve you today?

USER: My exams got postponed, can you please help me in changing the reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for visiting us.