You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I support you today for making you happy?

USER:  I already have an reservation to attend my meeting, due to some technical issues the meeting place has been changed. So I need to make a few changes in my reservation. Can you help me with this changing the reservation?

ASSISTANT: Sure, we are mirthful to serve you. Can I know on which name ticket has been booked in past?

USER:  I made a reservation by the name Deborah Lewis.

ASSISTANT: Ok, just a moment I will check the reservation list.

USER: Ok, Take your own time.

ASSISTANT: Thanks for waiting. We did not found any reservation showing active in our database for updating your reservation.

USER: No issue. I think my reservation was not confirmed yet. So, I will reach you later. Thanks for the information.

ASSISTANT: Thanks for reaming so positive, we're glad to serve you again.