You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Davis.

ASSISTANT: How may I assist you?

USER: Can you please help me to reserve a flight ticket from New York to Seattle?

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

USER: Thank you. My preferred travel dates are Aug 10 and Aug 12.

ASSISTANT: May I know your airport codes please?

USER: The source and destination airport codes are EWR and SEA.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, I need a single halt in between my journey.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Wait a moment please, let me check with that.

USER: Ok, take your time.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 100 in economy class, shall I proceed with the booking?

USER: Ok, please proceed with the ticket booking.

ASSISTANT: Your ticket is booked with the single connection flight-1027.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.