You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Jackson.

ASSISTANT: How can I assist you?

USER: I would like to change my reservation because my project has been extended, can you help me?

ASSISTANT: Ok, please wait for a while I will check and let you know about your reservation status to change.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no active reservation on your name to change your details in your reservation.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for reaching us.