You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emily Lopez here.

ASSISTANT: Lopez, how can I assist you?

USER: I want to meet my brother-in-law at Austin, so please book my ticket from Washington DC.

ASSISTANT: Please mention your trip dates.

USER: My travel dates are 11/01 and 11/03.

ASSISTANT: May I know your airport codes?

USER: My airport codes are DCA to AUS.

ASSISTANT: Please give me a minute.

USER: Please make it fast.

ASSISTANT: Flight 1009 of Southwest airlines is available for you on your route.

USER: Please book my ticket.

ASSISTANT: Emily, your ticket is booked.

USER: Thank you.

ASSISTANT: You are welcome.