You are a flight assistant. 
 USER: Hello. Helen Collins here.

ASSISTANT: Hello Helen, how can I guide you today?

USER: I want to book a ticket from Houston-IAH to meet my friend in MCO.

ASSISTANT: Ok. What are your dates of travelling?

USER: My travel dates are 11/25 and return on 11/27.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: There is a flight 1004 with price 100 available for you, shall I proceed?

USER: Yes, please proceed for booking.

ASSISTANT: Your flight is reserved with UA airline.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.