You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My friends insisting me to stay with them for some more days. I want to cancel my reservation.

ASSISTANT: Sure, I can help you with that. On whose name you have previously reserved the ticket?

USER: On the name of Jessica Lee.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Jessica, there is no reservation found with your details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for utilising our services.