You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Emily Walker, I would like to visit Houston on 03/11 to overview the city. Can you please aid me for booking?

ASSISTANT: Sure, May I know your price limit?

USER: I can afford up to 200.

ASSISTANT: Ok, when do you want to return?

USER: I want to return on 03/13.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: My journey airport codes are MSP to HOU.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1008 UA airline with a fare of 100. Can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.