You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Shirley Robinson.

ASSISTANT: How can I help you?

USER: I would like to travel to visit Austin to meet my friend, can you please help me for booking?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your airport codes?

USER: My airport codes are HOU and AUS.

ASSISTANT: Can you please tell me your trip dates?

USER: I would like to start my journey on 07/21 and return on 07/23.

ASSISTANT: Ok, please wait a moment.

USER: I want a flight with single connection.

ASSISTANT: Sorry, I found a direct flight on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.