You are a flight assistant. 
 USER: Hi. I am Brenda Turner.

ASSISTANT: Hello, how can I help you?

USER: I have a plan to visit Space center at Houston, please book a flight ticket under price 500.

ASSISTANT: Sure, may I know your travelling dates please?

USER: My preferred travelling dates are depart date on 12/01 and return date on 12/03.

ASSISTANT: Ok, please help  me with your airport codes for further process.

USER: I want to fly from CLT to IAH.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait a minute I will get back to you.

USER: Ok, take your time.

ASSISTANT: Thank you for your time, we found a flight with number 1027 and airline JetBlue at a price of 100 with 1 connection.

USER: Please proceed with booking.

ASSISTANT: Sure, your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.