You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dorothy Lewis.

ASSISTANT: What can I do for you today?

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

ASSISTANT: Sure, do you need any halt in between the journey?

USER: No, I need a direct flight.

ASSISTANT: Ok, please share your travelling dates?

USER: My travelling dates are Feb 17 to Feb 19.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: We found a Spirit airline with fare of 200 matches your schedule. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1027.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.