You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Sandra Moore. I would like to book a ticket from SEA to DFW, can you please help me out?

ASSISTANT: Sure, when are you planning to make your trip?

USER: I am travelling on these dates March 26th and 28th.

ASSISTANT: Is there any class preference?

USER: I don't have any preference.

ASSISTANT: At what time would you like to depart and return?

USER: I prefer departure time in the evening.

ASSISTANT: Are you okay with a single flag stop?

USER: Yes, I am fine with single connected flight.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, currently there are no flights going on your way.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.