You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Melissa Walker. I want to travel on these days that is on 06/04 and back on 06/06. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your airport codes please?

USER: Ok, my airport codes from EWR to DFW.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Southwest airlines is having a flight with travel charge of 200, shall I proceed for booking?

USER: Yes, proceed with the booking.

ASSISTANT: Your ticket has been booked with flight-1012, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.