You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What help do you require from our travel agency?

USER: I need to modify my previous flight ticket booking that I have reserved from your agency in the past week to submit a project report in my university but I have some important work on those dates, can you please help me in modifying of my flight ticket?

ASSISTANT: Sure, I am here to help you in modifying the ticket details. May I know your name to check the reservation status?

USER: Thank you for considering my request and my name is Debra Rodriguez.

ASSISTANT: Ok Debra Rodriguez, please wait a minute. I will check your ticket status and get back to you.

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you, I have not found any reservation on your name in our records.

USER: Ok, I didn't remember weather I have got the confirmation or not. I will check and get back to you if I need any help from your agency. Thank you for your kind service.

ASSISTANT: You are welcome. Thank you for reaching us. Have a nice day.

USER: Most welcome.