You are a flight assistant. 
 USER: Hello. Richard Baker here.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from HOU to DEN. Can you please help me to book a ticket?

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates.

USER: My travelling dates will be on 04/29 to 05/01.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 5000.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 100 and single connection. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Your booking is done and flight number is 1010.

USER: Thank you.

ASSISTANT: Thanks for reaching us.