You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jennifer Clark here.

ASSISTANT: How can I assist you?

USER: Reserve a flight ticket for me that is from DFW to SFO. My travel dates for the journey are 05/15 to 05/17.

ASSISTANT: Sure, may I know your travel dates please? Fine, please be on hold.

USER: My travelling dates for journey are 05/15 to 05/17.

ASSISTANT: Delta airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Yes, you can proceed for the booking.

ASSISTANT: Your ticket has been booked with flight-1003, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.