You are a flight assistant. 
 USER: Hello, Jeffrey Hall here.

ASSISTANT: Hello, how can I give assistance to you?

USER: Can you help me for booking a flight ticket under the price of 200?

ASSISTANT: Sure, may I know your connection limit?

USER: I am comfortable with a direct or connected flight.

ASSISTANT: Can you help me with your travelling dates?

USER: My travelling dates are from 03/20 to 03/22.

ASSISTANT: Please, share your airport codes.

USER: As I am an archaeologist, I have a research on human history in Austin, TX - AUS. So, I would like to travel from Houston, TX - HOU.

ASSISTANT: Okay, please wait.

USER: Sure.

ASSISTANT: We found a flight with the fare of 300 which does not matches your request.

USER: Do not proceed for booking. Thanks for your help.

ASSISTANT: Thanks for choosing us.