You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: With my negligence, I had book a ticket with wrong travelling dates. So, I want to change my travelling dates.

ASSISTANT: That's not a problem, I can help in changing. Before that may I know your name?

USER: Can you please help me in changing my reservation? If the reservation is confirmed?

ASSISTANT: Sure.

USER: Sure, myself Jacob Turner.

ASSISTANT: Jacob, wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Jacob, there is no ticket reserved on your name.

USER: Oh! I see, never mind.

ASSISTANT: Thank you for your approach. Have a great day Jacob.

USER: Thanks for your help.

ASSISTANT: It's alright.