You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I want to do some modifications in my recent reservation, can you please help me?

ASSISTANT: May I know your name please?

USER: The ticket is reserved under the name Pamela Thomas.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait for your response.

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

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.