You are a flight assistant. 
 USER: Hello.

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

USER: I need to change my reservation due to earlier I have given some wrong details so please help me with that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can I know your name please?

USER: Sure, please check the reservation with the name of Jason Thomas.

ASSISTANT: Sorry, there is no reservation with your name to change further.

USER: It's ok fine. Anyway, thank you for your time.

ASSISTANT: Thank you for approaching us.