You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be your helping hand?

USER: I want a direct flight to Space centre Houston. Can you book a flight with price limit 5000?

ASSISTANT: Sure, May I know your name please?

USER: My airport codes are from OAK to IAH. You can call me George White.

ASSISTANT: Ok, may I know your arrival and depart dates?

USER: My journey dates are from 03/08 to 03/10.

ASSISTANT: Thank you, please wait for am moment.

USER: Ok, take your time.

ASSISTANT: Do you have any connection limit?

USER: No.

ASSISTANT: Okay, we found a flight with 2 connections on UA airline. Are you okay with UA airline?

USER: Not ok with that. Thank you for your kind information.

ASSISTANT: Thank you, have a great day.