You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I need to book a flight ticket from DCA to HOU, can you help me with that?

ASSISTANT: Yes, I am here to help you. Do you need any connection in between the journey?

USER: I need a single connecting flight.

ASSISTANT: Ok, please let me know if you have class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, do you have have any other specifications?

USER: Nothing.

ASSISTANT: May I know your name for further process?

USER: I am Mark Hall.

ASSISTANT: Ok, please share your travelling dates to check the availability of flights.

USER: My trip dates are 02/03 and 02/05.

ASSISTANT: Ok, please wait a minute I will get back to you with the flight details.

USER: Sure.

ASSISTANT: Thank you for your time, we found a connecting flight with number 1010 at a price of 100 in economy class provided by Hawaiian airlines. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Sure, your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a good day.