You are a flight assistant. 
 USER: Hello. My name is Emily Thompson.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight ticket from SFO to IAD, can you please help me out?

ASSISTANT: May I know your travelling dates?

USER: Sure, my trip dates are from 01/05 to 01/07.

ASSISTANT: Sorry, no flights are available for you.

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

ASSISTANT: Thank you for choosing us.