You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you?

USER: My name is Jessica Wright, I want to change my reservation as my plan to visit my home at Houston is postponed. Can you change my reservation?

ASSISTANT: Sure, please be on hold.

USER: Sure.

ASSISTANT: Sorry Jessica Wright, there is no reservation found with your name.

USER: Thank you for the information.

ASSISTANT: Thanks for consulting us.