You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket from IAH to PHL, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: Sure, my journey dates are Sept 27 and Sept 29.

ASSISTANT: Ok, may I know your name?

USER: My name is William Jones.

ASSISTANT: Do you have any specification?

USER: My class preference is economy.

ASSISTANT: Here, I found a flight for you with 1 stopover in economy class and it costs you 100. Can I proceed?

USER: Ok, please book.

ASSISTANT: Your booking is done with flight 1021 in Frontier airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a safe flight.