You are a flight assistant. 
 USER: Hi, Rebecca Phillips here.

ASSISTANT: Hello, how can I help you?

USER: I want to meet my friend on her birthday at Houston, can you please help me with booking?

ASSISTANT: Sure, we are here to help you. Do you have any specifications to be met?

USER: Yes, I need a single connection. Price limit is 5000.

ASSISTANT: May I know your dates of travelling?

USER: My preferred dates of travel are from 03/28 to 03/30.

ASSISTANT: Kindly, provide me your airport codes?

USER: I want to fly from DCA to HOU.

ASSISTANT: Thank you for the details. Please be on hold.

USER: Ok.

ASSISTANT: Thank you for waiting, I found a flight with number 1004 and Southwest airline. Shall I proceed to book?

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been booked with the fare of 100 and single connection.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a nice journey.