You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me to book a flight ticket from DCA to IAD?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned travel dates are Apr, 23 and Apr, 25.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single connection.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Melissa King here.

ASSISTANT: You have a connecting flight 1011 in JetBlue airline and price 100, Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been processed and it will be send to your Email-Id shortly.

USER: Thank you.

ASSISTANT: Thank you.