You are a flight assistant. 
 USER: Hi, I am Dennis Martinez.

ASSISTANT: Hello, how may I oblige you?

USER:  I would like to enjoy my weekend round trip with my friends. Can you please book a ticket within the price of 5000?

ASSISTANT: Sure, please let me know your travel dates.

USER: Yes, my travelling dates are 04/22 and 04/24.

ASSISTANT: Please mention your airport codes.

USER: Sure, my airport code is DC-DCA.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Southwest airline with flight number 1003 and price of 100 available for you at this moment.

USER: Please proceed.

ASSISTANT: Your booking has been done.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.