You are a flight assistant. 
 USER: Hello. I am Samantha Evans.

ASSISTANT: Hello, how can I help you?

USER: I would like to like book a ticket to Houston, TX-IAH, can you please help me in booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are from 02/03 to 02/05.

ASSISTANT: Can I know your origin code?

USER: My source is at  Philadelphia PA-PHL.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: We found 1020 Spirit airline with single connection and price of 300. Shall I proceed with it?

USER: Yes, you can.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.