You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Due to deal with an emergency case in my home town, I am unable to travel to my planned location. So, can you please help me in my flight ticket modification process?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know which on name the reservation has been done?

USER: I am Mark Lopez and I have booked my previous flight ticket on my name it self.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I can wait.

ASSISTANT: Sorry to say that there is no reservation found with your name to modify.

USER: It's alright, I think the ticket is not yet confirmed due to server problems while I was booking I got an issue with that one. Anyway, thank you for your help.

ASSISTANT: Thank you for opting us.

USER: Welcome.