You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for the day?

USER: Nicole Baker here. I would like to travel from IAD to PHX. Can you please help me to book a flight?

ASSISTANT: Sure, I can help you with that flight ticket booking. May I know your travelling dates?

USER: Sure, I want to depart on July 16 and need to return on July 18.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Jet Blue Airlines are having a flight-1007  with a fare of 100. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been done in economy class.

USER: Thank you.

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