You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to attend a friend's birthday party in PHL, can you help me in booking a ticket from DCA?

ASSISTANT: Sure, let me know your connection limit.

USER: I need a flight with connection limit 1.

ASSISTANT: Do you have airlines preference?

USER: I want a flight with normal-cost airlines.

ASSISTANT: Please share your depart and arrival timings.

USER: I am willing to return in afternoon time.

ASSISTANT: Can you please share your travelling dates?

USER: I am departing on Oct 25 and return on Oct 27.

ASSISTANT: Can I get your name?

USER: My name is Paul Perez.

ASSISTANT: Thanks for providing your name. Sorry, there are no flights found based on your requirement.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.