You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I am Laura Turner. I want to change an existing reservation, due to my seminar dates has been postponed.

ASSISTANT: Ok.

USER: Can you help me out?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Wait for a while.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, There is no reservation found with your name.

USER: Not an issue.

ASSISTANT: Thanks for choosing us.

USER: Thank you for quick response.