You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I am Jacob Taylor. I would like to book a ticket from ORD to SEA, can you please help me out?

ASSISTANT: Ok, can you please mention your desired dates for this journey?

USER: I am travelling on these dates 01/21 and 01/23.

ASSISTANT: Sorry, no flights are available for your journey.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing our services.