You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Scott Lee.

ASSISTANT: Lee, how may I help you?

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

ASSISTANT: Sure, I can help you. Please give me a moment to check your ticket status. Sorry, no reservation is available by your name.

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

ASSISTANT: Thank you for reaching us.