You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: Justin Thomas here. I need to travel from Seattle WA-SEA to San Francisco CA-SFO.

ASSISTANT: Ok, May I know your travelling dates?

USER: Ya sure. My depart is on 07/14 and returning on 07/16.

ASSISTANT: Do you have any preferences?

USER: Ya price limit is 5000 and at least one single connection.

ASSISTANT: Flight number 1011 and Spirit airline and price 100 with a connection. Shall I proceed?

USER: Ya please proceed.

ASSISTANT: Ok, Your ticket is done. Thanks for choosing us.

USER: Thank you.