You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jonathan Martin.

ASSISTANT: What service that you are looking from our agency Martin?

USER: I want to cancel my flight ticket. Can you please help me with that?

ASSISTANT: Sure, I will assist you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your previous reservation status.

USER: Ok.

ASSISTANT: We regret to inform you that, there is no reservation under your name in our database.

USER: Oh! May be I am not booked my ticket properly at that time. Thank you for your service.

ASSISTANT: Thank you for contacting us, have a great day.