You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am Mathew Wright, I plan to meet my friend to spend some time with him. Can you book a connecting flight?

ASSISTANT: Sure, May I know the journey codes?

USER: My source point is DC-IAD and destination is DC-DCA.

ASSISTANT: Please help me with your travel dates.

USER: I will fly on 05/29 and return on 05/31.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found direct flight from Frontier airline. Shall I proceed?

USER: No.

ASSISTANT: Ok.

USER: Thank you for the informaton.

ASSISTANT: Thank you for availing us.