You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I was planning to change my holiday location to a cheaper destination. So, can you please help me with changing my existing reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May, I know your good name?

USER: I booked the ticket under the name of Ryan Collins.

ASSISTANT: Please wait for a moment.

USER: Ok, I will be waiting for your reply.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking for my reservation.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.