You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Larry Miller here.

ASSISTANT: What help are you seeking for our agency?

USER: I just want to cancel my recent reservation due to some health issue, can you assist me?

ASSISTANT: Yes, I will help you with the cancellation. Please wait a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, there are no reservation been found on your name. So I can not help you?

USER: Ok no problem, may be the ticket is not confirmed. Anyways thank you for checking.

ASSISTANT: Ok, please check your mails for more information. Thank you for connecting our agency.