You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can we do for you today?

USER: I am looking for your agency help in my ticket modification that my leaves are not approved from my office management, so can you help me in changing the reservation?

ASSISTANT: Yes, we can help you in changing your reservation. Can you please provide us your name?

USER: I reserved the ticket on the name Jessica Nelson.

ASSISTANT: Nelson, please be online for a moment. I will check your reservation status and get back to you.

USER: Sure, take your time.

ASSISTANT: Nelson, thank you for waiting. But I have not found any reservation by your name in our database.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for approaching us and have a nice day.