You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Linda Williams.

ASSISTANT: How can I assist you at this moment?

USER: From 02/11 to 02/13 I have planned a trip with my friend so, can you book a flight ticket for me?

ASSISTANT: Sure, can you please share your travelling airport codes to proceed further?

USER: Ok, From DFW to OAK are my airport codes.

ASSISTANT: Wait a moment please.

USER: OK.

ASSISTANT: Delta airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Yes, please book.

ASSISTANT: Linda Williams, your ticket is booked with flight number 1007.

USER: Thanks a lot for this help.

ASSISTANT: Thank you, have a safe journey.