You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Jacob Walker.

ASSISTANT: How could I assist you today?

USER: I am planning to meet my Ex Colleague's who are staying in Austin, TX - AUS. Can you make a flight reservation with price of 500?

ASSISTANT: Sure, kindly mention your source code?

USER: My boarding airport is from Denver, CO - DEN.

ASSISTANT: May I have your starting and return dates of your journey?

USER: Sure, 07/27 and 07/29 are my travelling dates.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: We found a connecting flight in Southwest airline with 1007 flight number. Shall I proceed?

USER: That's perfect, please proceed to book.

ASSISTANT: Your booking is done with a fare of 300.

USER: Thanks for your confirmation.

ASSISTANT: Thank you for choosing us.