You are a flight assistant. 
 USER: Hello, I am John Nelson.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket on 02/05 and return on 02/07 to meet my friend on his birthday. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you. Could you please mention your airport codes?

USER: It is a round trip and the airport code is Austin, TX-AUS.

ASSISTANT: Ok, please provide your price limit.

USER: I prefer to have a single connection in between the journey.

ASSISTANT: Ok. Do you have any other specifications?

USER: Price limit should not exceed 5000.

ASSISTANT: Ok, Thank you for your details. Please standby.

USER: Ok.

ASSISTANT: Thank you for your time, we found an UA airline found with a fare of 100.

USER: You can proceed with booking.

ASSISTANT: Sure, your ticket has been booked with flight number 1008.

USER: Thank you for your support.

ASSISTANT: Thank you for choosing us.