You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Jackson.

ASSISTANT: Benjamin Jackson, how may I aid you?

USER: Can you please help me in making an airline reservation from SFO to HOU?

ASSISTANT: May I know your itinerary dates?

USER: My itinerary dates are Nov 24th and Nov 26th.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight. The depart time should be evening.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights are available in the evening.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.