You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to attend for a meeting in BOS. Can you please make a reservation from DCA?

ASSISTANT: Sure, I am here to help you. May I know your planned journey dates?

USER: Thank you. I want to travel on Feb 11 and intend to return on Feb 13.

ASSISTANT: Let me know your connection limit.

USER: I am looking for a flight with single connection.

ASSISTANT: In which airline, you want me to book your flight ticket?

USER: I want to travel in an normal-cost airline.

ASSISTANT: Do you have any other preferences?

USER: Yes, I want economy class ticket.

ASSISTANT: Can I have your good name, please?

USER: Sure, my name is Amy Lopez.

ASSISTANT: Thank you for sharing the details. I am sorry to inform, there were no flights available that matches your requirements.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for approaching us.