You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jessica Martin. I am planning to visit DCA to meet my father, can you please find a flight from HOU?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My planning dates are from 04/21 till 04/23.

ASSISTANT: Please give me a moment.

USER: Sure, I will wait for your information.

ASSISTANT: Here, I found a flight for you with single connection.

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1002 and airline is UA.

USER: Thank you for booking.

ASSISTANT: Welcome. Thank you for choosing us.

USER: Welcome.