You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Pamela Miller.

ASSISTANT: How can I assist you today?

USER: I am planning to change my reservation to another destination, so can you help me to change my reservation?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Pamela, there is no reservation found under your name.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.