You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to Swift Travel Agency.

USER: Mary Martin here, booked a ticket for a small trip, but due to some urgency, I need to cancel my reservation, can you please help me?

ASSISTANT: Sure Martin, I am here to help you.

USER: Ok.

ASSISTANT: Wait a moment, I will check your previous reservation details.

USER: Thank you for immediate response.

ASSISTANT: Martin, there is no reservation showing to cancel, I think it may be cancelled.

USER: No issues, I will check with it again, thank you for giving clarification.

ASSISTANT: That's good. Thank you for reaching us.

USER: You are welcome.