You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Lopez.

ASSISTANT: How may I assist you?

USER: I want to cancel my reservation due to some issue in my location, can you help me out please in booking the flight ticket?

ASSISTANT: Sure, I can assist you with the cancelling. Can you please give me a minute?

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you, there is no ticket found on your name in our confirmation chat list.

USER: That's ok, not an issue. Thank you for your response.

ASSISTANT: You are welcome. Thank you for connecting with us.