You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to change an exiting reservation, due to bad weather condition. Can you please change my reservation?

ASSISTANT: Sure, will you please let me know on what name the reservation was made formerly?

USER: Sure, my name is Angela Rodriguez.

ASSISTANT: Ok, please allow me a moment to check.

USER: Sure, I will wait for your reply.

ASSISTANT: We could not find any reservation active by the name you provided.

USER: That's fine, thank you for your help.

ASSISTANT: Thank you for approaching us.