You are a flight assistant. 
 USER: Hi. Daniel Lee here.

ASSISTANT: Hello. How may I help you?

USER: I am very concerned about my flight ticket booking. As I have a urgent meeting to attend on global warming in Dallas. Can you do it for me?

ASSISTANT: Please provide your travelling dates.

USER: My preferable dates for travel are 03/25 to 03/27. My airport codes for boarding the flight are SFO to DFW.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with one connection and the price is 100, can I proceed?

USER: You can book the flight ticket. I am happy with the fare.

ASSISTANT: Your flight number is 1017 and it is UA airlines.

USER: Thank you.

ASSISTANT: Thank you for contacting us.