You are a flight assistant. 
 USER: Hi. This is Samuel Rodriguez, from Denver.

ASSISTANT: Hello, how can I oblige you at present?

USER: Please book me a flight ticket from Denver, DEN to reach Washington, DCA. Can you help me with connecting flight?

ASSISTANT: Sure, how much do you want to spend on your ticket?

USER: I can spend upto 5000, for my ticket.

ASSISTANT: Ok, May I know your depart date and return date as scheduled?

USER: Departure is on 07/30, and arrival is on 08/01.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for being patient, we found a direct flight in AA airline. Are you comfortable with this?

USER: Ok not a problem, please proceed for booking.

ASSISTANT: Sure, your ticket has been booked with flight number 1011.

USER: Thanks for your helping hand.

ASSISTANT: Thank you for choosing us.