You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jack Nelson. I am planning to visit Olympic National Park at Washington, could you please help me with booking a flight ticket?

ASSISTANT: Sure, can you provide your travelling dates?

USER: I would like to take off on 02/05 and return on 02/07.

ASSISTANT: Ok, help me with your airport codes.

USER: My nearest source airport code is JFK and destination airport code is DCA.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: There is a flight with number 1024 in airline Frontier, the fare is 200 with 1 connection.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is reserved, happy journey.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for reaching us.