You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please check the reservation by this name Rebecca Walker?

ASSISTANT: Sure, we are here to help you. Wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.