You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Miller.

ASSISTANT: What can I do for you today?

USER: I need to go Houston to meet my friend so please help me with flight ticket booking from OAK to IAH.

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Thank you. I have planned to travel on dates of Dec 25 and Dec 27.

ASSISTANT: Ok, share your class preference.

USER: Yes, I am preferring economy class to travel.

ASSISTANT: May I know your connection limit?

USER: I am looking for single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in evening time so please check with that.

ASSISTANT: Sure, please wait for few minutes.

USER: Sure, take your time.

ASSISTANT: Thank you for sharing your journey details, we found a economy class ticket in Delta airline with flight number-1027.

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket has been confirmed with the connecting flight and your return time will be in the evening and fare is 100.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.