You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Patrick Carter here. I need to book a ticket to Las Vegas to attend a meeting, can you please help me in booking?

ASSISTANT: Sure, May I know the travel dates?

USER: My travel dates are from 11/11 to 11/13.

ASSISTANT: Please help me with your journey codes.

USER: My journey codes are from ORD to LAS.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: We have found a flight from Southwest airline with one connection. Shall I proceed?

USER: Can you please re check with flights is there any flight available with direct flight.

ASSISTANT: Sorry, We do not have direct flight.

USER: As I am emergency to travel you can proceed with connecting flight.

ASSISTANT: Your ticket has been booked with the flight number 1005.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.