You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you help me to book a flight ticket from OAK to IAH?

ASSISTANT: Sure, may I know your good name?

USER: I am Edward Baker.

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

USER: My trip dates are 05 to 07 of Nov.

ASSISTANT: Do you have any preferences?

USER: I prefer to depart in the evening with a connecting flight.

ASSISTANT: We found a connecting flight 1020 from Southwest airline has fare 200 and departure time is 0:00 hours. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.