You are a flight assistant. 
 USER: Hi. I am Kenneth Hernandez.

ASSISTANT: Hello, how may I aid you?

USER: Please book me a ticket from SEA to DTW to meet my friend.

ASSISTANT: Sure, may I know your travel dates?

USER: I want to start my journey on Oct 27th and return on Oct 29th.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.