You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I want to book a connecting flight ticket to attend an event from TX. Can you help me?

ASSISTANT: Sure, please share your origin and destination airport codes.

USER: HOU and PHL are my airport codes.

ASSISTANT: May I know your travelling dates please?

USER: July 18th and 20th are my travelling dates.

ASSISTANT: Do you have any specific class preference?

USER: No.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: There are no time preference.

ASSISTANT: Do you have any other preference for this journey?

USER: No.

ASSISTANT: May I know your name please?

USER: Kevin Williams.

ASSISTANT: We have a flight from United airlines, number 1016 and the price for this ticket is 200. Shall I proceed with it?

USER: You can reserve it.

ASSISTANT: Your ticket has been booked in economy class with a connecting flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.