You are a flight assistant. 
 USER: Hi. Catherine Jones here.

ASSISTANT: Hello Jones, how can I assist you?

USER: Can you cancel my flight ticket reservation? As my press conference in Chicago is been postponed to some other dates.

ASSISTANT: Sure, I am here to help you. Please give me sometime, I will check your reservation status and let you know.

USER: Sure, take your time.

ASSISTANT: Jones, I did not find any reservation under your name in our database.

USER: Ok, not a problem. Thank you.

ASSISTANT: You are welcome and thank you for contacting us.