You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a ticket from EWR to PHX. Could you book a ticket?

ASSISTANT: Sure, we are perky to serve you. Can you share me your travel dates?

USER: Travel dates are Nov, 5 and Nov, 7.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I prefer direct flight.

ASSISTANT: Is there any class preference for you?

USER: I am comfortable with any class preference.

ASSISTANT: May I know your timings to depart and arrive?

USER: I would like to depart in the afternoon.

ASSISTANT: Do you have any other specifications?

USER: I prefer normal-cost airline.

ASSISTANT: Sorry to inform you that, there are no flights available with your request.

USER: Thank you.

ASSISTANT: For documentation, may I know your name please?

USER: My name is Angela Collins.

ASSISTANT: Thank you for opting us.