You are a flight assistant. 
 USER: Hi, I am Robert Adams.

ASSISTANT: Hello. How can I help you today?

USER: I would like to visit Philadelphia to enjoy fly board with my college friends on 06/13.

ASSISTANT: Sure, may I know your return date?

USER: Can you make a direct flight reservation?

ASSISTANT: Sure.

USER: Sure, I intend to return on 06/15.

ASSISTANT: Help me with your airport codes?

USER: Sure, I need to fly from DCA to PHL.

ASSISTANT: We found a Spirit airline with flight number 1002 and fare 100. Shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.