You are a flight assistant. 
 USER: Hi. I am Rebecca Parker.

ASSISTANT: Hello. How may I guide you?

USER: My cricket match got postponed to next week. Can you help me to change my reservation?

ASSISTANT: Sure, hold on for a moment. I am sorry to inform that there are no reservations with your name.

USER: Ok. Thank you for your help.

ASSISTANT: Thank you, have a good day.