You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I aid you?

USER: Attending a sports event at Washington, DCA on 04/21. I have to book a ticket.

ASSISTANT: Sure, when you want to return?

USER: 04/23 is my return date.

ASSISTANT: Ok, from where you want to board?

USER: I have to board from Houston, IAH.

ASSISTANT: Do you have any other requirements to be met?

USER: I can afford up to 200 for my journey.

ASSISTANT: May I know your name please?

USER: Charles Allen is here.

ASSISTANT: I found a connecting flight from JetBlue airline with flight number 1001. Shall I proceed?

USER: Yes proceed.

ASSISTANT: Your flight reservation is done.

USER: Thank you for your helping hand.

ASSISTANT: Thanks for opting us.