You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to reserve my ticket from IAD to SEA, can you please help me?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my preferable dates of journey are from Jun, 13 to Jun, 15.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Your good name please.

USER: Sure, my name is Nicholas Jones.

ASSISTANT: We found an airline: Southwest, flight number: 1020 and price is 100.

USER: Ok, you can book it.

ASSISTANT: Your flight ticket has been reserved with a single connection.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.