You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I would like to change my reservation as my exams got cancelled, can you please help me out with that?

ASSISTANT: Sure, we are glad to help you to change it.

USER: Thank you.

ASSISTANT: On whose name, your reservation has been done earlier?

USER: It is done under the name Amanda Thomas.

ASSISTANT: Thanks for providing your name, please standby.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that, there was no reservation found on your name to change it.

USER: Ok, no issues. Anyway thank you for checking out.

ASSISTANT: Thank you for choosing our service.