You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: As my leaves have been extended, so I would like to change my existing reservation. Can you please help me with this?

ASSISTANT: Sure, I can help you with that. Can you please provide me your full name which is on the previous ticket?

USER: Previously my reservation has done with the name of Ashley Rodriguez.

ASSISTANT: Ok, could you please be on hold for a few seconds?

USER: Sure, take your own time.

ASSISTANT: Sorry to tell you, there is no reservation found on your name.

USER: Ok, not an issue. May be I have done a mistake while booking.

ASSISTANT: Yes, that might be the reason Ashley.

USER: Anyway, thank you for providing information.

ASSISTANT: You are welcome.