You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER: I am Thomas Perez. Can you please reserve a seat to Philadelphia, PHL?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: 09/18 - 09/20 are my willing dates for travel.

ASSISTANT: Where would you like to start from?

USER: I will start from Houston, IAH.

ASSISTANT: We found  a Delta airline, flight number:1028 and the price is 100.

USER: Proceed with my booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.