You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Benjamin Lopez here.

ASSISTANT: How can I assist you?

USER: I need to travel from TX-HOU to AZ-PHX. Can you please help me to book my flight ticket.

ASSISTANT: Sure, I will help you.

USER: And my depart is on 11/03 and returning is on 11/05.

ASSISTANT: May I know the travelling dates? Do you have any restrictions?

USER: Price limit is 500 and I need at least a one single connection.

ASSISTANT: We have found a flight with direct connection. Are you comfortable with this airline?

USER: No I need a direct flight. Its OK. Thank you for the information.

ASSISTANT: Do you want this reservation?

USER: No I need a direct flight. Don't proceed booking my ticket.

ASSISTANT: Ok, Thank you.