You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Robert Adams.

ASSISTANT: What assistance do you need from us?

USER: I want to book a flight ticket from DCA to LAX.

ASSISTANT: Sure, I can assist you with booking. Can you please mention your travelling dates?

USER: The dates are 01/29 and 01/31 respectively.

ASSISTANT: Ok, I found a flight having a connection limit 1  and the price is 100 with the Southwest airlines. Are you ok with this?

USER: No, I need a flight with 0 connection.

ASSISTANT: Sorry, there are no flights with connection limit 0 in this route.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank's a lot for choosing us.