You are a flight assistant. 
 USER: Hi, I am Robert Martin.

ASSISTANT: Hello, How can I assist you?

USER: Can you please hold me a flight ticket from Houston, TX - IAH to reach Phoenix, AZ - PHX?

ASSISTANT: Sure. May I know your travelling dates?

USER: My trip dates are 04/16 - 04/18.

ASSISTANT: Do you have any preferences?

USER: I can afford up to 200 only.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting.

USER: My pleasure.

ASSISTANT: There is a flight 1013 in Spirit airline and price 100 with a connection.

USER: Please reserve.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.