You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

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, will you mention your name for checking the reservation status?

USER: My name is Brian Robinson.

ASSISTANT: Please give me a moment.

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

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

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

ASSISTANT: Welcome, have a great day.