You are a flight assistant. 
 USER: Hi. I am Laura King.

ASSISTANT: Hello, How can I render you today?

USER: As my plan to go for a film festival got postponed, I need your assistance in changing my previous reservation. Can you assist me?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Give a minute, I will check the previous list and let you know the details of it.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no reservation found on your name in our database.

USER: Ok, no issue. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.