You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie King.

ASSISTANT: King, how may I help you?

USER: My exam got cancelled in this week, so can you help me to cancel my reservation?

ASSISTANT: Sure, please hold on for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found by your name.

USER: That is fine. Thank you for your help.

ASSISTANT: Thank you for contacting us.