You are a flight assistant. 
 USER: Hi, I am Anna Carter.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to book a flight from SFO to HOU, so please help me in booking.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My scheduled dates are on May 6th to 8th.

ASSISTANT: Do you have any airline preference?

USER: I need a flight in normal-cost airline.

ASSISTANT: Is there any class preference for you?

USER: No, I am okay with any class.

ASSISTANT: Do you have any specifications?

USER: My return time is morning.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: No worries, thank you.

ASSISTANT: Thank you for reaching us.