You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Frank Edwards.

ASSISTANT: How may I render you at this moment?

USER: I need to book a flight ticket from SFO to DTW, Can you please help me for booking?

ASSISTANT: How much can you spend for this reservation?

USER: I can pay up to 1000.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 12/15 to 12/17.

ASSISTANT: Do you need any halt in between the journey?

USER: I need a connecting flight.

ASSISTANT: Sure, please wait for some time.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.