You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assit you?

USER: My name is Sarah Phillips, I want to book a flight from Houston to Boston to meet my sister. Can you help me with booking?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: I will travel on 21st June and return on 3rd June.

ASSISTANT: May I know your airport codes please?

USER: My source point is HOU and my destination is BOS.

ASSISTANT: Do you need any halt?

USER: I need a halt. Sorry, my return date is 23rd of June.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1002.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.