You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do to make your experience better with us?

USER: Due to relocation of my fashion show competition, I need to change my existing reservation. Will you help me in that?

ASSISTANT: Sure, I'll help you with this.

USER: Thanks.

ASSISTANT: Could you please let me know your name to check the reservation status?

USER: Sure, My name is William Garcia.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there is no reservation found by this name.

USER: No issues, thank you.

ASSISTANT: Thank you for approaching us.