You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Scott Wilson.

ASSISTANT: How can I aid you today?

USER: I want to travel from SFO to SEA. Can you help me to book a flight ticket?

ASSISTANT: Definitely, I need to know your trip dates?

USER: I want to travel in the flight on 10/21 and 10/23.

ASSISTANT: Please wait for some time.

USER: I am looking for a direct flight.

ASSISTANT: Sorry Scott, there is no flight on your desired route.

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

ASSISTANT: Thank you for reaching us.