You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: Please help me out in booking the ticket from SEA to IAD.

ASSISTANT: Sure, May I know your travelling dates?

USER: My trip dates will be Jun 27 to Jun 29.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: I need a connecting flight.

ASSISTANT: Ok, Do you have any other specifications?

USER: My depart time must be in the evening.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for your time, we found a connecting flight in 1029 JetBlue Airlines with a fare of 200.

USER: Please proceed.

ASSISTANT: May I know your name?

USER: Ronald Young is my name.

ASSISTANT: Your ticket has been reserved and return time is 4:00 hours.

USER: Thank you.

ASSISTANT: Thank you for choosing us.