You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

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

ASSISTANT: Sure, could I have your name please?

USER: My name is Jacob Baker.

ASSISTANT: Ok, please allow me a moment.

USER: I will be waiting for your response.

ASSISTANT: Sorry, there is no reservation with your name in our portal to make changes.

USER: Oh! That's fine. Anyways, thank you for checking.

ASSISTANT: You are welcome, have a great day.

USER: Most welcome.