You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit to Dallas to enjoy music festivals as I am a music lover. Can you help me to book a ticket?

ASSISTANT: Sure, we are here to aid you. Can I know your trip dates of Dallas?

USER: My journey dates are 01/23 and 01/25.

ASSISTANT: Could you please help me with your airport codes?

USER: My airport codes are DEN-DFW.

ASSISTANT: May I know your price limit?

USER: Price should not cross 1000.

ASSISTANT: We found a flight of Delta airline, flight number 1018 with the fare of 300. Shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Thank you for reaching our agency.