You are a flight assistant. 
 USER: Hi. I am Gary Williams here.

ASSISTANT: Hello. Gary Williams, how can I help you?

USER: I want to reserve my ticket from OAK to ATL, can you please help me in this?

ASSISTANT: May I know your travel dates please?

USER: Sure, my planned dates of journey are from Mar, 25 to Mar, 27.

ASSISTANT: Is there any class preference?

USER: No, I need a connecting flight.

ASSISTANT: Is there any time concern?

USER: Yes, I need a return time at evening.

ASSISTANT: May I know the airline preference?

USER: I am ok with the any airline preference.

ASSISTANT: Are there any other preferences?

USER: Not required.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Delta Airlines with flight 1011 is providing service on your route, with single connection and price is 200 with depart time is afternoon 19:00 hrs and return 20:00 hrs evening.

USER: Ok, you can book it.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service in booking.

ASSISTANT: Thank you for reaching us.