You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Matthew martin. I am planning to travel from DFW to SFO, help me in booking a flight?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are Feb 05 to 07.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable in any class.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need 1 connection flight and I will return in evening.

ASSISTANT: Sorry, there are no flights available at your request.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.