You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I am Betty Edwards. Can you help me to change my reservation to next week?

ASSISTANT: Sure, I will help you with that. Please wait for a minute.

USER: Ok, take your time.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.