You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to travel from LGA to DCA, can you help me in doing that?

ASSISTANT: Can I know your travelling dates?

USER: My journey dates are Jan 11 to 13.

ASSISTANT: Is there class preference?

USER: I prefer economy class.

ASSISTANT: Do you have airline preference?

USER: No.

ASSISTANT: Can I know your name?

USER: I am Virginia Edwards.

ASSISTANT: Is there specification?

USER: No.

ASSISTANT: Connecting flight can be booked with Southwest airlines for price 100. Shall I book a ticket?

USER: Ok, please proceed.

ASSISTANT: Ticket is booked in an economy class having flight number 1024.

USER: Thank you.

ASSISTANT: Thank you.