You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from PHX to HOU?

ASSISTANT: Sure, may I know your travel dates?

USER: My preferable journey dates are Oct 22 and Oct 24.

ASSISTANT: May I know your preferences?

USER: I prefer direct flight for this trip.

ASSISTANT: Do you have any airlines preference?

USER: I would like to prefer normal cost airline.

ASSISTANT: Please mention your name.

USER: My name is Deborah Adams.

ASSISTANT: Flight-1024 is available in Delta airlines with direct flight and the flight fare is 200. Can I proceed?

USER: Please proceed to book my flight ticket in this airline.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.