You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Due to some issues in my home town, I am unable to travel the trip which I have planned and it got postponed to other dates, can you please change my ticket booking?

ASSISTANT: Sure, I will help you in this.

USER: Thank you.

ASSISTANT: May I know your name please for further process to change your reservation?

USER: Sure, my name is Scott Campbell.

ASSISTANT: Scott, please wait for a mean while to check for the availability.

USER: Yes, please go ahead.

ASSISTANT: Sorry Scott, there is no reservation found as per your name to change your reservation in your database.

USER: Ok, no problem with that one, I think the ticket booking is not yet confirm while I am booking. Anyways, thank you for your help.

ASSISTANT: You are welcome and hope you can visit our agency again and have a great day.

USER: Thank you.