You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jennifer Campbell, want to cancel my recent reservation due to some personal issue. Please help me out with that.

ASSISTANT: Sure, I am glad to help you. Please give me a moment to check your reservation status.

USER: Ok, take your time.

ASSISTANT: Sorry Jennifer, no reservation found by your name.

USER: It's ok, no issue. Anyway, thank you for your help.

ASSISTANT: Thank you for contacting us.