You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brandon Harris here.

ASSISTANT: How may I aid you?

USER: I have a Chess competition in Los Angeles.Can you please help me for booking a ticket?

ASSISTANT: Sure, can you provide me your airport codes and travel dates?

USER: My airport codes are from DC-DCA to CA-LAX. My departure date is 08/06 and return date is 08/08. Make sure my connections limit is 1.

ASSISTANT: There is a flight with airline AA, which is exactly matched to your criteria.

USER: My price limit is 200.

ASSISTANT: Yes, it is with your basis only.

USER: Please proceed for booking.

ASSISTANT: Your booking was done.

USER: Thank you for helping me.

ASSISTANT: You are welcome.