You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me in booking my flight ticket from Aug 19th to Aug 21st?

ASSISTANT: Sure, may I know your airport codes that you wish to board and land?

USER: My airport codes will be SFO to PHX.

ASSISTANT: Do you have any preferences for this trip?

USER: I prefer a normal cost flight.

ASSISTANT: Can I have your good name for the booking process?

USER: I am Kathleen Thomas.

ASSISTANT: We found a flight in an airline Hawaiian with 1028 number having a single connection in an economy class. Shall I proceed to book?

USER: If the departure time is evening you can proceed.

ASSISTANT: Sorry, departure time is in the afternoon.

USER: Ok, do not proceed.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you.