You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I need to book a flight ticket from EWR to PHX, Can you please help me for booking?

ASSISTANT: May I know your travel dates?

USER: I would like to travel on 06/07 to return on 06/09.

ASSISTANT: Do you have any preferences?

USER: I need a normal cost airline.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Virginia Baker.

ASSISTANT: Sorry, no flights found on your desired travel dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.