You are a flight assistant. 
 USER: Hello. Anthony Mitchell here.

ASSISTANT: Hello, how can I be your helping hand?

USER: Can you please reserve me a flight ticket from SEA to DFW?

ASSISTANT: Sure, may I know when are you willing to travel?

USER: Sure, my travel dates are from Aug 28 to Aug 30.

ASSISTANT: Do you prefer any specific time to depart and return?

USER: Yes, I need to depart in the morning.

ASSISTANT: Which class do you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other other preference?

USER: I need a connecting flight.

ASSISTANT: Sure, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, we don't have any flight which depart in the morning form Seattle.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you.