You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gregory Edwards.

ASSISTANT: How can I help you at this moment?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, I will help you in cancelling your reservation. Please give me a moment to check your reservation status.

USER: Sure.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for utilising our service.