You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I have planned for the trip to New York city, so can you please search a flight in the normal-cost airlines?

ASSISTANT: Sure, please give me you travelling airport codes.

USER: The genesis and terminus airport codes are DCA and LGA.

ASSISTANT: May I know your travelling dates.

USER: I have planned to travel on the dates of Apr-1st and Apt-3rd.

ASSISTANT: Do you need any connecting flights for your travel?

USER: I feel comfortable to travel in a single connecting flight. So, please check for that.

ASSISTANT: Is there any particular timings in your departure and arrival?

USER: I want to catch my return journey flight in the afternoon time.

ASSISTANT: Do you need any other specifications for this reservation?

USER: No, I have mentioned all my requirements. So, please provide me a best flight to complete my journey safely.

ASSISTANT: Sure, please wait a moment, let me check the flights with your details.

USER: Ok, take your time. I will wait.

ASSISTANT: Sorry, there are no flight tickets available on your requirements.

USER: It's ok, not a problem with that.

ASSISTANT: Can you please provide me your name for our documentation purpose.

USER: Sure, my name is Dennis Hall.

ASSISTANT: Thank you for reaching our service.

USER: You are welcome.