You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Catherine Young here.

ASSISTANT: Yes Catherine, in which way I can be your helping hands?

USER: This is with reference to my booking with your booking agency which I have done. I'm sorry to inform you that I won't be able to make it due to my father got hospitalized, hence I would like to cancel my booking. I apologize for any inconvenience resulting from this decision, but I have no other choice considering the circumstances.

ASSISTANT: So sad to hear about your father, I don't have any problem to cancel your reservation but can you please hold on for a second to check the reservation status which was done on your name?

USER: Ok, sure please have your time and get back me with the suitable details about my reservation.

ASSISTANT: Catherine as you have mentioned about your booking which you have done. But  so sorry to say I am unable to find your reservation in our database.

USER: So sad to hear, I have done my reservation in the month of January but due to some technical issues in my server it was not confirmed at the time of booking and also I have not yet received any confirmation details about my booking.

ASSISTANT: Yes it might be the issue with your server, that is the reason your booking is not confirmed yet. So that is the reason we could not found your reservations in our listings.

USER: Ok, anyway thank you for your valuable feedback about my cancellation.

ASSISTANT: It's my responsibility, thank you for opting our service. Please, visit our agency in future use.

USER: Ok, sure I will visit you again and most welcome.