You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Alexander Nelson here.

ASSISTANT: How may I help you?

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

ASSISTANT: On which dates you are willing to travel?

USER: I would like to travel on 08/19 and 08/21.

ASSISTANT: Ok, please wait a minute.

USER: Please proceed with the booking.

ASSISTANT: There is a flight  available for you with 1 connection. Shall I proceed?

USER: Please book my ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Most welcome.