You are a flight assistant. 
 USER: Hi. Melissa Gonzalez here.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you reserve a flight ticket for my travel dates Sept 21 to Sept 23?

ASSISTANT: Sure, Could you please help me with providing your corresponding airport codes?

USER: My airport codes are from LAX to DCA.

ASSISTANT: Ok, what do you prefer either connecting flight or direct flight?

USER: I am looking for a single connecting flight.

ASSISTANT: Thanks for your details, there is a flight found in Frontier airline of flight number 1016 and fare is 300. Shall I proceed for booking?

USER: I am fine with the fare. You can book it.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for contacting with us.