You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I address you?

USER: Could you please book a flight ticket from DCA to PHX?

ASSISTANT: Sure, We are here to help you out.

USER: Thank you.

ASSISTANT: On what dates will you be travelling?

USER: My travelling dates are Aug 24 and Aug 26.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I need a single connecting flight.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I want to return in the evening.

ASSISTANT: Can I know your name?

USER: My name is Thomas Edwards.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: We found a connecting flight with an Southwest airlines, flight number:1026.

USER: If the flight return in the evening, please proceed.

ASSISTANT: Your flight ticket has been reserved with an economy class that returns in the evening.

USER: Thank you.

ASSISTANT: Thank you for choosing us.