You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I render you today?

USER: Can you please book a flight from Houston, IAH?

ASSISTANT: Sure, we are glad to aid you.

USER: Thank you.

ASSISTANT: Where are you heading to?

USER: I have to land in Las Vegas, LAS.

ASSISTANT: Kindly, share your planned trip dates.

USER: To celebrate my cousin's birthday, I need to be there on 09/26. I will return on 09/28.

ASSISTANT: Ok. What is the budget for your trip?

USER: I can afford an amount of 500.

ASSISTANT: Ok. Please, wait for a while I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thanks for your time,.

USER: It's Ok.

ASSISTANT: Based on your request we found a plane 1011 of UA airline with a connecting flight. Shall I proceed?

USER: Sure, you can proceed to book with my name Ashley Adams.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for availing us.