You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jacob Lewis here.

ASSISTANT: How can I assist you today?

USER: Actually, I am looking for a flight with in the fare of 5000, so can you please help me out with booking of a flight ticket with in this limit?

ASSISTANT: Sure, will you provide your airport codes please?

USER: Sure, I want to travel from LAS to DCA.

ASSISTANT: Please provide your travelling dates that you want to travel.

USER: I am planning to go on 03/17 and please book a return ticket on 03/19.

ASSISTANT: Please give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for helping me.

USER: No problem.

ASSISTANT: Based on your details, there is a flight with price 100 and the connections 1 is available.

USER: It's perfect, you can proceed with booking.

ASSISTANT: Your ticket is booked. The flight number is 1022.

USER: Thank you for your help, have a good day.

ASSISTANT: Welcome, have a great day.