You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Stephanie Lewis here. I would like to book a ticket to Phoenix to meet my college friend, can you please help me in booking a ticket from DCA to PHX?

ASSISTANT: Sure, do you have any specifications?

USER: The travel dates are from 05/08 to 05/10.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: There is a flight in airline Southwest and number is 1015. Can I book it?

USER: You can proceed booking my ticket.

ASSISTANT: Your ticket is booked, happy journey.

USER: Thank you for your quick service.

ASSISTANT: Thank you picking us.