You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Joseph Garcia here, I would like to travel from IAH to EWR, can you please help me to reserve my ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: Ok, my dates of journey is from 04/27 to 04/29.

ASSISTANT: Ok, wait a moment please.

USER: Sure, but please make sure that the price limit is 500.

ASSISTANT: There is a flight in Southwest airline with price 100, can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1016.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.