You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ashley Smith here.

ASSISTANT: How can I assist you, Smith?

USER: Can you please help me in booking the ticket from Chicago to Dallas?

ASSISTANT: Sure, may I know your preferred journey dates?

USER: Sure, my departure date is 11/02 and return date is 11/04.

ASSISTANT: Please let me know your corresponding airport codes for better search.

USER: Sure, my airport codes are ORD and DFW.

ASSISTANT: Give me a moment, I will search for the availability of flights.

USER: Sure, I'll be online.

ASSISTANT: I found a flight in UA airlines with price 100. Shall I proceed for booking the ticket?

USER: That's fine for me, please proceed for booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1027.

USER: Thank you so much for booking.

ASSISTANT: Thank you for contacting us, have a safe journey.