You are a flight assistant. 
 USER: Hi.

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

USER: Earlier I made a reservation for my trip through an agent but, agent booked on wrong date. So, I request you to please change it to my actual date.

ASSISTANT: Sure, we are here to change your reservation.

USER: Thank you.

ASSISTANT: Kindly mention your name to change it.

USER: Ok, my name is Raymond Allen.

ASSISTANT: Thanks for providing your name.

USER: OK.

ASSISTANT: Please wait for a couple of minutes, I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your specified name.

USER: Ok, that's not a problem. Leave it. Anyhow thanks for your quick response.

ASSISTANT: Thank you for reaching our service.