You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Shirley Thomas. As I am a doctor, I want to attend an emergency surgery at Washington, DC - DCA. Can you please book a ticket with a halt?

ASSISTANT: Sure, may I know your origin point?

USER: My origin is Las Vegas, NV - LAS.

ASSISTANT: Can I know your journey dates?

USER: My journey dates are 07/08 and 07/10.

ASSISTANT: Do you need connection limit?

USER: I have already mentioned.

ASSISTANT: We have a flight of Hawaiian airline, flight number as 1023 with the price of 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.