You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Rebecca Jackson. I had planned to go on a trip, but it was postponed due to some reasons. Can you change my recent reservation?

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Wait for some time I will check the reservations on your name and get back to you.

USER: Ok, take your time.

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

USER: That's ok. Anyways, thank you.

ASSISTANT: Thanks for approaching us.