You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to meet my grand parents after a long a time at Washington. Can you help me with booking?

ASSISTANT: Sure, may I know your planned dates?

USER: I would like to fly on 12/27 and return on 12/29.

ASSISTANT: Can you please share me your airport code?

USER: My journey points are PA-PHL to DC-DCA.

ASSISTANT: May I know your good name please?

USER: I am Matthew Evans.

ASSISTANT: We accumulated a flight details this are airline Southwest, flight number: 1007. Shall I book this ticket?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you so much for opting us.