You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Jennifer Walker. Can you please help me with changing my recent reservation?

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

USER: Ok.

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

USER: Ok, no issues. Thanks for the help.

ASSISTANT: You are welcome. Thank you for reaching us.