You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I need your help to book a flight from IAD to DCA.

ASSISTANT: Sure, we are here to help you. Please let me know your connection limit?

USER: Thank you. I am looking for a flight with single connection.

ASSISTANT: May I know your good name?

USER: Myself Sarah Hall.

ASSISTANT: Could you please share your journey dates?

USER: Sure, I want to travel on Apr 26 and need to return on Apr 28.

ASSISTANT: Are there any more specifications?

USER: My depart time must be in the evening.

ASSISTANT: We found a connecting flight 1007 from Hawaiian airline has fare 100 and departure time is 2:00 hours.

USER: Ok, please proceed.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.