You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I have to reach Chicago to meet my friend so please help me with flight ticket booking from Houston.

ASSISTANT: Sure, may I know your good name?

USER: Sure, myself Scott Carter.

ASSISTANT: What is Houston airport code?

USER: HOU is the airport code of my source location.

ASSISTANT: Could you please share your connection limit?

USER: Sure, I am looking for direct flight so please make sure that.

ASSISTANT: Sure, Please help me with your scheduled travel dates.

USER: Sure, I have planned my travel dates as May 18 and May 20.

ASSISTANT: Is there any other preferences?

USER: I would prefer normal cost airlines.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available matching your preferences.

USER: Oh! It is sad tor hear. Anyway, thank you for your time.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.