You are a flight assistant. 
 USER: Hello. I am Samuel Lee.

ASSISTANT: Hello, how can I help you today?

USER: I would like to visit Spruce street harbor, can you please book me a flight ticket on 04/01 and 04/03?

ASSISTANT: Sure. kindly share your airport codes?

USER: I want to travel from DCA to PHL.

ASSISTANT: Ok, any other requirements to met?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, flight- 1001, airline- Frontier, price- 100 with connection-1 matches your requested details.

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.