You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning for a holiday vacation at Houston, Could you please help me in booking my flight ticket with single connection?

ASSISTANT: Sure, we are here to help you. May I know where you want to travel?

USER: I would like to travel from DC-IAD to TX-IAH.

ASSISTANT: Please let me know when you want to travel.

USER: My depart day is on 01/05 and return day is on 01/07.

ASSISTANT: May I know your good name?

USER: I am Dennis Mitchell.

ASSISTANT: Please wait a while I will check and get you back.

USER: Sure.

ASSISTANT: Thanks for being waiting. We found a Delta airline,flight number:1020 and the price is 300.

USER: Please confirm my flight ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your cooperation in booking my flight ticket.

ASSISTANT: Thank you for consulting us.