You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you for the day?

USER: I am Frank Rodriguez and I want to book the flight ticket from PHX to SEA.

ASSISTANT: Sure, I will help you with this. Could you please share your preferable journey dates?

USER: My journey dates are 12/01 and 12/03.

ASSISTANT: Do you need any halt in this journey?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification for this trip?

USER: My return time should be in the evening.

ASSISTANT: Frank Rodriguez, there are no flight services available with your requirement of evening return time flight on this route on your provided date.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.