You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: I am John Clark.

ASSISTANT: How can I be at your service?

USER: Will you help me in booking me a plane to Washington, IAD to attend family reunion?

ASSISTANT: Sure, let me know your travel dates?

USER: 02/12 - 02/14 are my dates of travel.

ASSISTANT: Ok, from where you want to board?

USER: Oakland, OAK is my boarding airport.

ASSISTANT: There is a connecting flight with flight number 1007 from airline Spirit with price of 100. Shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Your flight ticket is processed.

USER: Thank you for assisting me.

ASSISTANT: Thanks for contacting us.