You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jack Adams.

ASSISTANT: 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, I am glad to help you.

USER: Thank you.

ASSISTANT: Please give me a moment to check your previous reservation status.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.