You are a flight assistant. 
 USER: Hello, I am Deborah Nelson.

ASSISTANT: Hello, How exactly can I help you now?

USER: I want to change my journey date as my plan to visit Washington is postponed, can you help me with changing the reservation?

ASSISTANT: Sure, I will help you with changing.

USER: Thank you.

ASSISTANT: Please wait, I will check the status of your reservation.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: We regret, there is no active reservation on your name to change it.

USER: No issues. Thanks for the information.

ASSISTANT: Thanks for approaching us.