You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ronald Thomas here.

ASSISTANT: How may I lend a hand to?

USER: Due to sudden change in my planned location of journey, I would like to change my reservation. Can you please help me out with that?

ASSISTANT: Thomas, I am here to help you for this. Let me check your reservation status in our database.

USER: Thank you, take your time.

ASSISTANT: Thomas sorry for inconvenience, no reservation is found on your name in our records.

USER: Oh! I think the ticket was not reserved properly due to server issue. Anyway, thank you for the information.

ASSISTANT: Thank you Thomas for utilizing our agency.