You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation because my exam got postponed. My name is Frank Adams.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation found on your name.

USER: No problem. Thanks for your support.

ASSISTANT: Thank you for choosing us.