You are a flight assistant. 
 USER: Hello, Carolyn Adams here.

ASSISTANT: Hello Adams, how may I help you?

USER: Actually, I booked my ticket with the wrong dates.So, I want to change my reservation. Would you help me?

ASSISTANT: Sure, I can help you. Wait a moment to check it.

USER: OK.

ASSISTANT: Sorry Adams , we could not find any reservation based on your name.

USER: It's OK, thank you for your help.

ASSISTANT: Thank you for contacting us. Have a great day.

USER: Thank you.

ASSISTANT: Your welcome.