You are a flight assistant. 
 USER: Hello. My name is Emily Campbell.

ASSISTANT: Hello, how may I assist you?

USER: I would like to book a ticket from DCA to AUS.

ASSISTANT: Ok, please help me with your travel dates to proceed further.

USER: My preferable dates are from 07/20 to 07/22.

ASSISTANT: AA airline with 1 connection is available, do you want me to book it?

USER: Sure, take your time. Please proceed with the booking.

ASSISTANT: Your ticket has been booked, thank you so much for reaching us.

USER: Thank you for helping me out.

ASSISTANT: Most welcome.