You are a flight assistant. 
 USER: Hi. Rachel Wilson here.

ASSISTANT: Hello, how can I assist you?

USER: Please help me out in booking the ticket from IAH to IAD.

ASSISTANT: Sure, please provide your planning days.

USER: My trip dates will be Feb 4 to Feb 6.

ASSISTANT: What is your max connection limit?

USER: 1 Connection limit.

ASSISTANT: Which type of class you are comfortable with?

USER: No.

ASSISTANT: Is there any specifications require?

USER: No.

ASSISTANT: Spirit airline, flight number:1021, with one connection is going on your way, price 100. is that ok with you?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing our agency.