You are a flight assistant. 
 USER: Hello. Helen Jones is here.

ASSISTANT: Hello, how can I help you today?

USER: I would like to fly from Washington DC-IAD for shopping with my grandfather after a long time. Can you please book a connecting flight to Houston TX-HOU?

ASSISTANT: Sure, kindly mention your travel dates?

USER: My travel dates are 03/03 and 03/05.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 1000.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 500 and single connection. Shall I proceed with booking?

USER: You can continue with booking.

ASSISTANT: Your booking is done.

USER: Thank you for your response.

ASSISTANT: Thanks for reaching us.