You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Afternoon.

USER: Christine Harris this side. Very good afternoon to you too.

ASSISTANT: Ok, how may I aid you Harris?

USER: I want to book a flight from Washington, DC - DCA to Seattle, WA -SEA to sell my apartment, can you help me?

ASSISTANT: Sure, I am here to aid you. Please provide me your travelling dates?

USER: I want to takeoff on 10/15, I would like to return back on 10/17.

ASSISTANT: Ok, could you please provide me some time to check the flight?

USER: Yes, sure.

ASSISTANT: I found a UA airlines in this route, which is having a connection limit is 1 but the price is 300. Can I confirm your flight ticket?

USER: But my budget is only 200, can you please check with 200 price?

ASSISTANT: Sorry, there are no flights with this fare on the dates your have given.

USER: Ok, no issues. Thank you for helping me.

ASSISTANT: You are welcome. Thank you for choosing us.

USER: Most welcome.

ASSISTANT: Have a nice day.