You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I know which help do you need from our agency?

USER: I need to cancel my reservation due to my planned trip got cancelled because of financial issues. So please help me with that.

ASSISTANT: Sure, I will provide you the service regarding the ticket cancellation.

USER: Thank you.

ASSISTANT: On which name you have reserved your previous ticket?

USER: Please check the reservation with my name Patrick Adams.

ASSISTANT: OK, can I put the conversation on hold for a while?

USER: Sure, I will wait for your response.

ASSISTANT: I am really sorry to inform you that, there is no reservation found with your name in our database to cancel.

USER: Oh! I will check my mail to check whether the reservation has done or not. Anyway, thank you for your time.

ASSISTANT: It's my pleasure. Thank you for opting us.

USER: Most welcome.