You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jennifer Green.

ASSISTANT: How may I assist you?

USER: I want to cancel my reservation as my project got ramp down. Can you help me?

ASSISTANT: Sure, I will definitely help you in that ticket cancellation. Please wait for a moment.

USER: Ok.

ASSISTANT: I have checked as per your request, I am unable to find your reservation in our previous booking list to cancel the reservation.

USER: It's Ok, thanks for your assistance.

ASSISTANT: It's my pleasure and thank you for contacting us. Have a nice day.