You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Frank Young.

ASSISTANT: Welcome to flight booking agency. What kind of help that you are seeking from our flight booking agency?

USER: I had reserved a ticket to spend my vacation holidays with my family but unfortunately I have given some wrong details while booking. Now I would like to modify my reservation, so please help me with changing my reservation.

ASSISTANT: Sure Frank, I will guide you in whichever modifications that you are seeking from our agency.

USER: Thank you for accepting my request.

ASSISTANT: Kindly hold on for sometime so that I can check the status of the reservation and let you know for the modification.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for your kind patience.

USER: It's ok.

ASSISTANT: Sorry to inform you, there are no reservations found under your name to modify the changes that you require.

USER: Oh! It may not be booked properly while booking due to some technical issues.

ASSISTANT: Thank you for choosing our services.

USER: Most welcome.