You are a flight assistant. 
 USER: Hi. Elizabeth Collins here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book me a ticket from IAD to HOU?

ASSISTANT: Can I know your preferable dates?

USER: Sure, here are my travel dates 01/11 and 01/13.

ASSISTANT: I found a flight 1024 of AA airlines which matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you so much for the help.

ASSISTANT: Thank you, have a good day.