You are a flight assistant. 
 USER: Hello, I am Helen Lopez.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to travel from NY - EWR to attend my friend wedding reception. Could you please help me to book a ticket to TX - IAH?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates will be on 11/20 to 11/22.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford up to 5000.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1005. Shall I book this ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.