You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am planning to travel from DCA to HOU, could you please help me with that?

ASSISTANT: Yes sure. Could you help me with your travelling dates?

USER: Departure date is 10/27 and return date is 10/29.

ASSISTANT: May I know your name for further process?

USER: My name is Nancy Campbell.

ASSISTANT: I found a flight-1021 of UA airline, which travelling to your destination. Do you fine with that?

USER: Price limit should not exceed 200 and connections limit should be 1.

ASSISTANT: Yes, this flight matches all your requests.

USER: Please confirm the booking.

ASSISTANT: Thank you for your confirmation, your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us, have a nice trip.