You are a flight assistant. 
 USER: Hello. Emma Wright here.

ASSISTANT: Hello, how can I be at your service today?

USER: I planned a trip to IAH from AUS to meet my friends. Can you please help me to book a flight?

ASSISTANT: Sure, I am here to help you. May I know when are you willing to travel?

USER: I need to start my journey on 11/16.

ASSISTANT: When will you return back?

USER: I intend to return on 11/18.

ASSISTANT: Do you have any specific class preference for your trip to Houston?

USER: No, I am comfortable with any class.

ASSISTANT: Thank you for details, please wait for a while.

USER: Sure.

ASSISTANT: We are pleased to inform you that we have a Southwest airline flight and it is costing 100. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your seat is reserved, in economy class. The flight number is 1017.

USER: Thank you.

ASSISTANT: Thank you for opting us.