You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to attend my convocation ceremony, could you book my ticket from OAK to DFW?

ASSISTANT: Sure, may I know your travel dates?

USER: My itinerary dates are Feb 21 and 23.

ASSISTANT: Please share me your name.

USER: Rachel King here.

ASSISTANT: Please share me your specifications?

USER: I want to depart from Oakland in the morning.

ASSISTANT: Flight-1002 is available with Southwest airlines having direct connection and the ticket costs you 200 only in economy class. Are you comfortable with this flight?

USER: May I know the flight timings?

ASSISTANT: Depart time is 12:00 and arrival time at 14;00.

USER: I want to depart in the morning.

ASSISTANT: Sorry, there is no flight at morning time.

USER: No problem, thank you.

ASSISTANT: Thank you.