You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

USER: My exams got postponed due to some issues in college, can you please help me in changing my existing reservation?

ASSISTANT: Sure, I'll try to help you in changing an existing reservation.

USER: Thank you.

ASSISTANT: Can you please share your name to check the reservation status?

USER: Reservation has been done earlier on the name of Benjamin Edwards.

ASSISTANT: Ok, please wait a minute I will get back to you with the present status.

USER: Sure, I'll wait for your response.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

USER: Ok, no problem. Thank you for your quick response.

ASSISTANT: Thank you for approaching us.