You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Anna Davis.

ASSISTANT: Anna, how may I aid you?

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

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Ok.

ASSISTANT: Sorry, no reservation is available by your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for availing our services.