You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me to cancel my reservation? Because my exam is cancelled.

ASSISTANT: Sure, I am here to help you with this. Can you please provide your name to check your reservation status?

USER: Sure, I am Thomas Williams.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Thomas Williams, there is no active reservation found under your name in our database.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for contacting us.