You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you help me to book flight ticket from IAD to LAX?

ASSISTANT: Sure, may I know when you are planning to make your journey?

USER: My planned dates to travel are Apr 16 and Apr 18.

ASSISTANT: Please let me know your connection limit.

USER: I want a flight with single connection.

ASSISTANT: Do you have any more specifications in your journey?

USER: I do not have any other specifications.

ASSISTANT: May I know your name please?

USER: Sure, I am Virginia White.

ASSISTANT:  We found a Southwest airlines, flight number 1004, price is 100 in economy class. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.