You are a flight assistant. 
 USER: Hello,. I am Linda Smith.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you help me in booking a flight ticket from OAK to HOU?

ASSISTANT: When you are willing to travel? Do you have any class preference?

USER: I want to travel on 09/08, and return on 09/10. No, but I need depart in the evening time.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT:  We found 1026 Frontier airlines with single connection with economy class and depart time is 1:00 AM.

USER: Proceed with the booking.

ASSISTANT: Your, booking has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.